42 KiB
42 KiB
Security Documentation - AI Study Assistant
🔒 COMPREHENSIVE SECURITY FRAMEWORK
📋 OVERVIEW
This document outlines the complete security architecture, policies, and procedures for the AI Study Assistant platform, ensuring data protection, privacy compliance, and secure operations across all components.
🛡️ SECURITY ARCHITECTURE
Defense in Depth Strategy
Multi-Layer Security
┌─────────────────────────────────────────────────────┐
│ APPLICATION LAYER │
│ • Input Validation • Authentication • Authorization │
├─────────────────────────────────────────────────────┤
│ API LAYER │
│ • Rate Limiting • API Security • Request Validation │
├─────────────────────────────────────────────────────┤
│ DATA LAYER │
│ • Encryption • Access Control • Audit Logging │
├─────────────────────────────────────────────────────┤
│ INFRASTRUCTURE LAYER │
│ • Network Security • Container Security • Monitoring│
└─────────────────────────────────────────────────────┘
Security Domains
- Application Security: Code-level protections
- Data Security: Encryption and access control
- Network Security: Communication protection
- Infrastructure Security: Platform protection
- Operational Security: Processes and procedures
🔐 AUTHENTICATION & AUTHORIZATION
Authentication Framework
Firebase Authentication
// Authentication configuration
const authConfig = {
providers: [
'email', // Email/password
'google', // Google OAuth
'apple', // Apple Sign In (iOS)
],
passwordPolicy: {
minLength: 8,
requireUppercase: false,
requireLowercase: false,
requireNumbers: false,
requireSpecialChars: false,
},
sessionManagement: {
maxAge: 30 * 60 * 1000, // 30 minutes
refreshThreshold: 5 * 60 * 1000, // 5 minutes
},
multiFactorAuth: {
enabled: false, // Future enhancement
methods: ['sms', 'totp'],
}
};
Token Management
// JWT Token validation
export class TokenValidator {
async validateToken(token: string): Promise<AuthResult> {
try {
const decodedToken = await admin.auth().verifyIdToken(token);
// Check token age
const now = Date.now() / 1000;
if (decodedToken.exp < now) {
throw new Error('Token expired');
}
// Check user status
const user = await this.getUser(decodedToken.uid);
if (!user.isActive) {
throw new Error('User account disabled');
}
return {
success: true,
user: decodedToken,
permissions: await this.getPermissions(decodedToken.uid),
};
} catch (error) {
return {
success: false,
error: error.message,
};
}
}
}
Authorization Framework
Role-Based Access Control (RBAC)
// Role definitions
export enum UserRole {
STUDENT = 'student',
TEACHER = 'teacher',
ADMIN = 'admin',
SUPER_ADMIN = 'super_admin',
}
// Permission definitions
export enum Permission {
// Student permissions
READ_OWN_CONTENT = 'read_own_content',
SUBMIT_QUIZZES = 'submit_quizzes',
ASK_QUESTIONS = 'ask_questions',
VIEW_OWN_PROGRESS = 'view_own_progress',
// Teacher permissions
MANAGE_CLASS = 'manage_class',
UPLOAD_CONTENT = 'upload_content',
CREATE_QUIZZES = 'create_quizzes',
VIEW_STUDENT_PROGRESS = 'view_student_progress',
// Admin permissions
MANAGE_USERS = 'manage_users',
MANAGE_SCHOOLS = 'manage_schools',
VIEW_ANALYTICS = 'view_analytics',
MANAGE_SYSTEM = 'manage_system',
}
// Role-Permission mapping
const rolePermissions = {
[UserRole.STUDENT]: [
Permission.READ_OWN_CONTENT,
Permission.SUBMIT_QUIZZES,
Permission.ASK_QUESTIONS,
Permission.VIEW_OWN_PROGRESS,
],
[UserRole.TEACHER]: [
...rolePermissions[UserRole.STUDENT],
Permission.MANAGE_CLASS,
Permission.UPLOAD_CONTENT,
Permission.CREATE_QUIZZES,
Permission.VIEW_STUDENT_PROGRESS,
],
[UserRole.ADMIN]: [
...rolePermissions[UserRole.TEACHER],
Permission.MANAGE_USERS,
Permission.MANAGE_SCHOOLS,
Permission.VIEW_ANALYTICS,
],
[UserRole.SUPER_ADMIN]: [
...rolePermissions[UserRole.ADMIN],
Permission.MANAGE_SYSTEM,
],
};
Authorization Middleware
// Express middleware for authorization
export const authorize = (requiredPermission: Permission) => {
return async (req: Request, res: Response, next: NextFunction) => {
try {
const token = req.headers.authorization?.split('Bearer ')[1];
if (!token) {
return res.status(401).json({ error: 'Authentication required' });
}
const authResult = await tokenValidator.validateToken(token);
if (!authResult.success) {
return res.status(401).json({ error: authResult.error });
}
const userPermissions = authResult.permissions;
if (!userPermissions.includes(requiredPermission)) {
return res.status(403).json({ error: 'Insufficient permissions' });
}
req.user = authResult.user;
req.permissions = userPermissions;
next();
} catch (error) {
res.status(500).json({ error: 'Authorization error' });
}
};
};
🔒 DATA PROTECTION
Encryption Standards
Data-at-Rest Encryption
// Firebase Firestore encryption
const encryptionConfig = {
// Default Firebase encryption
firestore: {
encryption: 'AES-256',
keyRotation: '90 days',
},
// Additional encryption for sensitive data
sensitiveFields: [
'email',
'personalInfo',
'healthData',
'assessmentResults',
],
// Custom encryption for PII
piiEncryption: {
algorithm: 'AES-256-GCM',
keyDerivation: 'PBKDF2',
iterations: 100000,
},
};
Data-in-Transit Encryption
// HTTPS/TLS configuration
const tlsConfig = {
version: 'TLS 1.3',
ciphers: [
'TLS_AES_256_GCM_SHA384',
'TLS_CHACHA20_POLY1305_SHA256',
'TLS_AES_128_GCM_SHA256',
],
certificates: {
provider: 'Let\'s Encrypt',
autoRenewal: true,
monitoring: true,
},
};
Field-Level Encryption
// Sensitive data encryption
export class FieldEncryption {
private readonly algorithm = 'aes-256-gcm';
private readonly keyLength = 32;
async encryptField(data: string, key: string): Promise<EncryptedData> {
const iv = crypto.randomBytes(16);
const cipher = crypto.createCipher(this.algorithm, key);
cipher.setAAD(Buffer.from('teachit-field', 'utf8'));
let encrypted = cipher.update(data, 'utf8', 'hex');
encrypted += cipher.final('hex');
const tag = cipher.getAuthTag();
return {
data: encrypted,
iv: iv.toString('hex'),
tag: tag.toString('hex'),
};
}
async decryptField(encryptedData: EncryptedData, key: string): Promise<string> {
const decipher = crypto.createDecipher(this.algorithm, key);
decipher.setAAD(Buffer.from('teachit-field', 'utf8'));
decipher.setAuthTag(Buffer.from(encryptedData.tag, 'hex'));
let decrypted = decipher.update(encryptedData.data, 'hex', 'utf8');
decrypted += decipher.final('utf8');
return decrypted;
}
}
Data Classification
Data Sensitivity Levels
export enum DataClassification {
PUBLIC = 'public', // Public information
INTERNAL = 'internal', // Internal use only
CONFIDENTIAL = 'confidential', // Sensitive business data
RESTRICTED = 'restricted', // Highly sensitive data
}
// Data classification mapping
const dataClassification = {
// Public data
'appVersion': DataClassification.PUBLIC,
'featureFlags': DataClassification.PUBLIC,
// Internal data
'userPreferences': DataClassification.INTERNAL,
'learningProgress': DataClassification.INTERNAL,
'quizResults': DataClassification.INTERNAL,
// Confidential data
'email': DataClassification.CONFIDENTIAL,
'personalInfo': DataClassification.CONFIDENTIAL,
'schoolData': DataClassification.CONFIDENTIAL,
// Restricted data
'assessmentScores': DataClassification.RESTRICTED,
'behavioralData': DataClassification.RESTRICTED,
'healthInformation': DataClassification.RESTRICTED,
};
Data Retention Policy
// Data retention configuration
const retentionPolicy = {
// User data
userData: {
active: 'indefinite', // While account is active
inactive: '2 years', // After account closure
deleted: '30 days', // After deletion request
},
// Learning data
learningProgress: {
detailed: '2 years', // Detailed progress
summary: '7 years', // Summary statistics
aggregated: 'indefinite', // Aggregated analytics
},
// System logs
logs: {
access: '90 days', // Access logs
errors: '1 year', // Error logs
performance: '30 days', // Performance logs
security: '7 years', // Security logs
},
// Audit data
audit: {
userActions: '7 years', // User action logs
adminActions: 'indefinite', // Admin actions
dataAccess: '7 years', // Data access logs
},
};
🌐 NETWORK SECURITY
API Security
Rate Limiting
// Rate limiting configuration
export const rateLimitConfig = {
// Global limits
global: {
windowMs: 60 * 1000, // 1 minute
max: 1000, // 1000 requests per minute
},
// Per-endpoint limits
endpoints: {
'/auth/signin': {
windowMs: 15 * 60 * 1000, // 15 minutes
max: 5, // 5 login attempts
},
'/tutor/ask': {
windowMs: 60 * 1000, // 1 minute
max: 20, // 20 questions per minute
},
'/quiz/submit': {
windowMs: 60 * 1000, // 1 minute
max: 10, // 10 quiz submissions per minute
},
'/content/upload': {
windowMs: 60 * 1000, // 1 minute
max: 5, // 5 uploads per minute
},
},
// Per-user limits
perUser: {
windowMs: 60 * 1000, // 1 minute
max: 100, // 100 requests per minute per user
},
};
API Security Headers
// Security headers middleware
export const securityHeaders = {
'Content-Security-Policy': [
"default-src 'self'",
"script-src 'self' 'unsafe-inline'",
"style-src 'self' 'unsafe-inline'",
"img-src 'self' data: https:",
"font-src 'self'",
"connect-src 'self' https://api.teachit.app",
"frame-ancestors 'none'",
"base-uri 'self'",
"form-action 'self'",
].join('; '),
'X-Content-Type-Options': 'nosniff',
'X-Frame-Options': 'DENY',
'X-XSS-Protection': '1; mode=block',
'Strict-Transport-Security': 'max-age=31536000; includeSubDomains',
'Referrer-Policy': 'strict-origin-when-cross-origin',
'Permissions-Policy': 'camera=(), microphone=(), geolocation=()',
};
Input Validation
// Input validation middleware
export const validateInput = (schema: Joi.Schema) => {
return (req: Request, res: Response, next: NextFunction) => {
const { error } = schema.validate(req.body);
if (error) {
return res.status(400).json({
error: 'Validation error',
details: error.details.map(d => d.message),
});
}
next();
};
};
// Example validation schemas
export const schemas = {
askTutor: Joi.object({
query: Joi.string().min(5).max(500).required(),
mode: Joi.string().valid('EXPLANATION', 'TUTOR', 'EXPLORATION', 'REMEDIAL').required(),
context: Joi.object({
subject: Joi.string(),
currentTopic: Joi.string(),
}).optional(),
}),
submitQuiz: Joi.object({
quizId: Joi.string().required(),
answers: Joi.array().items(
Joi.object({
questionId: Joi.string().required(),
answer: Joi.alternatives().try(
Joi.number(),
Joi.string(),
Joi.array()
).required(),
timeSpent: Joi.number().min(0).max(3600).optional(),
})
).required(),
}),
};
Database Security
Firestore Security Rules
// Enhanced security rules
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
// Helper functions
function isAuthenticated() {
return request.auth != null;
}
function isSameSchool(schoolId) {
return isAuthenticated() &&
get(/databases/$(database)/documents/users/$(request.auth.uid)).data.schoolId == schoolId;
}
function hasRole(role) {
return isAuthenticated() &&
get(/databases/$(database)/documents/users/$(request.auth.uid)).data.role == role;
}
function isDataOwner(userId) {
return isAuthenticated() && request.auth.uid == userId;
}
function isValidTimestamp() {
return request.time == request.time;
}
function hasValidFields(fields) {
return request.resource.data.keys().hasAll(fields);
}
// Users collection
match /users/{userId} {
allow read, write: if isDataOwner(userId) || hasRole('admin');
allow create: if isAuthenticated() &&
isDataOwner(userId) &&
hasValidFields(['email', 'role', 'schoolId']) &&
isValidTimestamp();
allow update: if isDataOwner(userId) || hasRole('admin');
allow delete: if hasRole('admin');
}
// Learning states
match /learningStates/{studentId} {
allow read: if isAuthenticated() &&
(isDataOwner(studentId) || isSameSchool(resource.data.schoolId));
allow write: if isAuthenticated() &&
(isDataOwner(studentId) || hasRole('teacher'));
allow create: if isAuthenticated() && isDataOwner(studentId);
allow update: if isAuthenticated() &&
(isDataOwner(studentId) || hasRole('teacher'));
allow delete: if hasRole('admin');
}
// Content chunks
match /contentChunks/{chunkId} {
allow read: if isAuthenticated() && isSameSchool(resource.data.schoolId);
allow write: if isAuthenticated() &&
(hasRole('teacher') || hasRole('admin')) &&
isSameSchool(resource.data.schoolId);
allow create: if isAuthenticated() &&
hasRole('teacher') &&
isSameSchool(request.resource.data.schoolId);
allow update: if isAuthenticated() &&
(hasRole('teacher') || hasRole('admin')) &&
isSameSchool(resource.data.schoolId);
allow delete: if isAuthenticated() &&
(hasRole('teacher') || hasRole('admin')) &&
isSameSchool(resource.data.schoolId);
}
// Quiz attempts
match /quizAttempts/{attemptId} {
allow read: if isAuthenticated() &&
(isDataOwner(resource.data.studentId) || isSameSchool(resource.data.schoolId));
allow write: if isAuthenticated() &&
(isDataOwner(resource.data.studentId) || hasRole('teacher'));
allow create: if isAuthenticated() && isDataOwner(resource.data.studentId);
allow update: if hasRole('admin');
allow delete: if hasRole('admin');
}
// Audit logs (admin only)
match /auditLogs/{logId} {
allow read, write, create: if hasRole('admin');
}
}
}
Storage Security Rules
// Firebase Storage security rules
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
// Helper functions
function isAuthenticated() {
return request.auth != null;
}
function isSameSchool(schoolId) {
return isAuthenticated() &&
get(/databases/(default)/documents/users/$(request.auth.uid)).data.schoolId == schoolId;
}
function hasRole(role) {
return isAuthenticated() &&
get(/databases/(default)/documents/users/$(request.auth.uid)).data.role == role;
}
// Content files
match /content/{schoolId}/{allPaths=**} {
allow read: if isAuthenticated() && isSameSchool(schoolId);
allow write: if isAuthenticated() &&
(hasRole('teacher') || hasRole('admin')) &&
isSameSchool(schoolId);
allow create: if isAuthenticated() &&
(hasRole('teacher') || hasRole('admin')) &&
isSameSchool(schoolId) &&
request.resource.size < 50 * 1024 * 1024; // 50MB limit
}
// User avatars
match /avatars/{userId}/{fileName} {
allow read: if isAuthenticated();
allow write: if isAuthenticated() &&
request.auth.uid == userId &&
request.resource.size < 5 * 1024 * 1024; // 5MB limit
allow delete: if isAuthenticated() && request.auth.uid == userId;
}
// Temporary files
match /temp/{userId}/{fileName} {
allow read: if isAuthenticated() && request.auth.uid == userId;
allow write: if isAuthenticated() &&
request.auth.uid == userId &&
request.resource.size < 10 * 1024 * 1024; // 10MB limit
allow delete: if isAuthenticated() && request.auth.uid == userId;
}
}
}
🔍 MONITORING & AUDITING
Security Monitoring
Real-time Monitoring
// Security monitoring service
export class SecurityMonitor {
private alerts: SecurityAlert[] = [];
async detectAnomalies(request: Request): Promise<SecurityAlert[]> {
const alerts: SecurityAlert[] = [];
// Rate limit detection
const rateLimitAlert = await this.checkRateLimit(request);
if (rateLimitAlert) alerts.push(rateLimitAlert);
// Suspicious activity detection
const suspiciousAlert = await this.checkSuspiciousActivity(request);
if (suspiciousAlert) alerts.push(suspiciousAlert);
// Geolocation anomaly detection
const geoAlert = await this.checkGeolocationAnomaly(request);
if (geoAlert) alerts.push(geoAlert);
return alerts;
}
private async checkRateLimit(request: Request): Promise<SecurityAlert | null> {
const key = `rate_limit:${request.ip}:${request.path}`;
const count = await this.redis.incr(key);
if (count === 1) {
await this.redis.expire(key, 60); // 1 minute window
}
if (count > 100) {
return {
type: 'RATE_LIMIT_EXCEEDED',
severity: 'HIGH',
message: `Rate limit exceeded for ${request.ip}`,
metadata: {
ip: request.ip,
path: request.path,
count: count,
},
};
}
return null;
}
private async checkSuspiciousActivity(request: Request): Promise<SecurityAlert | null> {
// Check for unusual patterns
const patterns = [
/union.*select/i, // SQL injection
/<script.*>/i, // XSS
/\.\.\//, // Path traversal
/javascript:/i, // JavaScript injection
];
const body = JSON.stringify(request.body);
const query = request.url;
for (const pattern of patterns) {
if (pattern.test(body) || pattern.test(query)) {
return {
type: 'SUSPICIOUS_PATTERN',
severity: 'MEDIUM',
message: `Suspicious pattern detected: ${pattern}`,
metadata: {
pattern: pattern.toString(),
ip: request.ip,
userAgent: request.headers['user-agent'],
},
};
}
}
return null;
}
}
Audit Logging
// Audit logging service
export class AuditLogger {
async logSecurityEvent(event: SecurityEvent): Promise<void> {
const auditLog = {
timestamp: new Date().toISOString(),
eventType: event.type,
severity: event.severity,
userId: event.userId,
ipAddress: event.ipAddress,
userAgent: event.userAgent,
action: event.action,
resource: event.resource,
result: event.result,
metadata: event.metadata,
};
// Log to Firestore
await admin.firestore().collection('auditLogs').add(auditLog);
// Log to external security system
await this.sendToSecuritySystem(auditLog);
// Check for immediate alerts
if (event.severity === 'HIGH' || event.severity === 'CRITICAL') {
await this.triggerSecurityAlert(auditLog);
}
}
private async sendToSecuritySystem(log: any): Promise<void> {
// Integration with SIEM or security monitoring system
const securityWebhook = process.env.SECURITY_WEBHOOK_URL;
if (securityWebhook) {
await fetch(securityWebhook, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(log),
});
}
}
private async triggerSecurityAlert(log: any): Promise<void> {
// Send immediate notification to security team
const alert = {
type: 'SECURITY_ALERT',
severity: log.severity,
message: `Security event: ${log.eventType}`,
details: log,
};
// Send to Slack/email/SMS
await this.sendAlert(alert);
}
}
Compliance Monitoring
GDPR Compliance
// GDPR compliance monitoring
export class GDPRMonitor {
async checkCompliance(userId: string): Promise<ComplianceReport> {
const report: ComplianceReport = {
userId,
timestamp: new Date().toISOString(),
checks: [],
compliant: true,
};
// Check data consent
const consentCheck = await this.checkDataConsent(userId);
report.checks.push(consentCheck);
// Check data retention
const retentionCheck = await this.checkDataRetention(userId);
report.checks.push(retentionCheck);
// Check data processing
const processingCheck = await this.checkDataProcessing(userId);
report.checks.push(processingCheck);
// Check data sharing
const sharingCheck = await this.checkDataSharing(userId);
report.checks.push(sharingCheck);
report.compliant = report.checks.every(check => check.compliant);
return report;
}
private async checkDataConsent(userId: string): Promise<ComplianceCheck> {
const user = await this.getUser(userId);
const hasConsent = user.dataConsent?.given;
const consentUpToDate = this.isConsentRecent(user.dataConsent?.timestamp);
return {
type: 'DATA_CONSENT',
compliant: hasConsent && consentUpToDate,
details: {
hasConsent,
consentDate: user.dataConsent?.timestamp,
consentUpToDate,
},
};
}
private async checkDataRetention(userId: string): Promise<ComplianceCheck> {
const userData = await this.getUserData(userId);
const oldData = userData.filter(data => this.isDataTooOld(data.timestamp));
return {
type: 'DATA_RETENTION',
compliant: oldData.length === 0,
details: {
dataCount: userData.length,
oldDataCount: oldData.length,
retentionPolicy: '2 years',
},
};
}
}
🚨 INCIDENT RESPONSE
Incident Response Plan
Incident Classification
export enum IncidentSeverity {
LOW = 'low', // Minor issue, limited impact
MEDIUM = 'medium', // Moderate issue, some impact
HIGH = 'high', // Serious issue, significant impact
CRITICAL = 'critical', // Critical issue, severe impact
}
export enum IncidentType {
DATA_BREACH = 'data_breach',
UNAUTHORIZED_ACCESS = 'unauthorized_access',
DENIAL_OF_SERVICE = 'denial_of_service',
MALWARE = 'malware',
SOCIAL_ENGINEERING = 'social_engineering',
SYSTEM_COMPROMISE = 'system_compromise',
PHYSICAL_SECURITY = 'physical_security',
}
Response Procedures
// Incident response service
export class IncidentResponse {
async handleIncident(incident: SecurityIncident): Promise<void> {
// Step 1: Immediate response
await this.immediateResponse(incident);
// Step 2: Assessment
const assessment = await this.assessIncident(incident);
// Step 3: Containment
await this.containIncident(incident, assessment);
// Step 4: Investigation
const investigation = await this.investigateIncident(incident);
// Step 5: Recovery
await this.recoverFromIncident(incident, investigation);
// Step 6: Post-incident review
await this.postIncidentReview(incident);
}
private async immediateResponse(incident: SecurityIncident): Promise<void> {
// Log incident
await this.logIncident(incident);
// Alert security team
await this.alertSecurityTeam(incident);
// Initial containment if critical
if (incident.severity === IncidentSeverity.CRITICAL) {
await this.emergencyContainment(incident);
}
}
private async assessIncident(incident: SecurityIncident): Promise<IncidentAssessment> {
return {
impact: await this.assessImpact(incident),
scope: await this.assessScope(incident),
urgency: this.calculateUrgency(incident),
resources: await this.identifyResources(incident),
};
}
private async containIncident(incident: SecurityIncident, assessment: IncidentAssessment): Promise<void> {
switch (incident.type) {
case IncidentType.UNAUTHORIZED_ACCESS:
await this.containUnauthorizedAccess(incident);
break;
case IncidentType.DATA_BREACH:
await this.containDataBreach(incident);
break;
case IncidentType.DENIAL_OF_SERVICE:
await this.containDenialOfService(incident);
break;
default:
await this.genericContainment(incident);
}
}
private async containUnauthorizedAccess(incident: SecurityIncident): Promise<void> {
// Revoke compromised tokens
await this.revokeTokens(incident.userId);
// Force password reset
await this.forcePasswordReset(incident.userId);
// Enable additional monitoring
await this.enhanceMonitoring(incident.userId);
}
private async containDataBreach(incident: SecurityIncident): Promise<void> {
// Isolate affected systems
await this.isolateSystems(incident.affectedSystems);
// Preserve evidence
await this.preserveEvidence(incident);
// Notify affected users
await this.notifyAffectedUsers(incident);
}
}
Communication Plan
// Incident communication service
export class IncidentCommunication {
async notifyStakeholders(incident: SecurityIncident): Promise<void> {
const stakeholders = await this.getStakeholders(incident);
for (const stakeholder of stakeholders) {
await this.notifyStakeholder(stakeholder, incident);
}
}
private async notifyStakeholder(stakeholder: Stakeholder, incident: SecurityIncident): Promise<void> {
const message = this.createMessage(stakeholder, incident);
switch (stakeholder.type) {
case 'SECURITY_TEAM':
await this.sendUrgentNotification(stakeholder, message);
break;
case 'MANAGEMENT':
await this.sendExecutiveNotification(stakeholder, message);
break;
case 'LEGAL':
await this.sendLegalNotification(stakeholder, message);
break;
case 'USERS':
await this.sendUserNotification(stakeholder, message);
break;
case 'PUBLIC':
await this.sendPublicNotification(stakeholder, message);
break;
}
}
private createMessage(stakeholder: Stakeholder, incident: SecurityIncident): string {
const templates = {
SECURITY_TEAM: `URGENT: ${incident.type} detected. Severity: ${incident.severity}. Immediate action required.`,
MANAGEMENT: `Security Incident Report: ${incident.type}. Impact: ${incident.impact}. Status: ${incident.status}`,
LEGAL: `Legal Notification: ${incident.type} incident. Potential regulatory implications.`,
USERS: `Security Notice: We're investigating a security incident. Your account may be affected.`,
PUBLIC: `Security Update: We're investigating a security incident and taking appropriate action.`,
};
return templates[stakeholder.type] || 'Security incident occurred.';
}
}
🛡️ VULNERABILITY MANAGEMENT
Security Testing
Penetration Testing
// Penetration testing framework
export class PenetrationTest {
async runSecurityTests(): Promise<TestResults> {
const results: TestResults = {
timestamp: new Date().toISOString(),
tests: [],
vulnerabilities: [],
score: 0,
};
// Authentication tests
const authTests = await this.testAuthentication();
results.tests.push(...authTests.tests);
results.vulnerabilities.push(...authTests.vulnerabilities);
// Authorization tests
const authzTests = await this.testAuthorization();
results.tests.push(...authzTests.tests);
results.vulnerabilities.push(...authzTests.vulnerabilities);
// Input validation tests
const inputTests = await this.testInputValidation();
results.tests.push(...inputTests.tests);
results.vulnerabilities.push(...inputTests.vulnerabilities);
// Data protection tests
const dataTests = await this.testDataProtection();
results.tests.push(...dataTests.tests);
results.vulnerabilities.push(...dataTests.vulnerabilities);
// Calculate security score
results.score = this.calculateSecurityScore(results);
return results;
}
private async testAuthentication(): Promise<TestResult> {
const tests = [];
const vulnerabilities = [];
// Test weak passwords
const weakPasswordTest = await this.testWeakPasswords();
tests.push(weakPasswordTest);
if (weakPasswordTest.vulnerable) {
vulnerabilities.push({
type: 'WEAK_PASSWORDS',
severity: 'HIGH',
description: 'Weak password policy detected',
recommendation: 'Implement stronger password requirements',
});
}
// Test session management
const sessionTest = await this.testSessionManagement();
tests.push(sessionTest);
if (sessionTest.vulnerable) {
vulnerabilities.push({
type: 'SESSION_MANAGEMENT',
severity: 'MEDIUM',
description: 'Session management issues detected',
recommendation: 'Improve session security',
});
}
return { tests, vulnerabilities };
}
private async testInputValidation(): Promise<TestResult> {
const tests = [];
const vulnerabilities = [];
// Test SQL injection
const sqlInjectionTest = await this.testSQLInjection();
tests.push(sqlInjectionTest);
if (sqlInjectionTest.vulnerable) {
vulnerabilities.push({
type: 'SQL_INJECTION',
severity: 'CRITICAL',
description: 'SQL injection vulnerability detected',
recommendation: 'Implement proper input sanitization',
});
}
// Test XSS
const xssTest = await this.testXSS();
tests.push(xssTest);
if (xssTest.vulnerable) {
vulnerabilities.push({
type: 'XSS',
severity: 'HIGH',
description: 'Cross-site scripting vulnerability detected',
recommendation: 'Implement proper output encoding',
});
}
return { tests, vulnerabilities };
}
}
Code Security Analysis
// Static code analysis
export class CodeSecurityAnalyzer {
async analyzeCode(codePath: string): Promise<SecurityReport> {
const report: SecurityReport = {
timestamp: new Date().toISOString(),
issues: [],
score: 0,
};
// Analyze for security issues
const issues = await this.scanForSecurityIssues(codePath);
report.issues = issues;
// Calculate security score
report.score = this.calculateSecurityScore(issues);
return report;
}
private async scanForSecurityIssues(codePath: string): Promise<SecurityIssue[]> {
const issues: SecurityIssue[] = [];
// Scan for hardcoded secrets
const secrets = await this.scanForSecrets(codePath);
issues.push(...secrets);
// Scan for insecure functions
const insecureFunctions = await this.scanForInsecureFunctions(codePath);
issues.push(...insecureFunctions);
// Scan for input validation issues
const validationIssues = await this.scanForValidationIssues(codePath);
issues.push(...validationIssues);
return issues;
}
private async scanForSecrets(codePath: string): Promise<SecurityIssue[]> {
const secrets = [];
const secretPatterns = [
/password\s*=\s*['"`][^'"`]+['"`]/gi,
/api_key\s*=\s*['"`][^'"`]+['"`]/gi,
/secret\s*=\s*['"`][^'"`]+['"`]/gi,
/token\s*=\s*['"`][^'"`]+['"`]/gi,
];
const files = await this.getAllCodeFiles(codePath);
for (const file of files) {
const content = await fs.readFile(file, 'utf8');
for (const pattern of secretPatterns) {
const matches = content.match(pattern);
if (matches) {
secrets.push({
type: 'HARDCODED_SECRET',
severity: 'HIGH',
file: file,
line: this.getLineNumber(content, matches[0]),
code: matches[0],
recommendation: 'Use environment variables or secure storage',
});
}
}
}
return secrets;
}
}
📋 COMPLIANCE & REGULATIONS
GDPR Compliance
Data Subject Rights
// GDPR rights implementation
export class GDPRRights {
async rightToAccess(userId: string): Promise<UserDataExport> {
const userData = await this.getAllUserData(userId);
return {
personalData: userData.personal,
learningData: userData.learning,
interactionData: userData.interactions,
metadata: {
exportDate: new Date().toISOString(),
recordCount: this.countRecords(userData),
},
};
}
async rightToRectification(userId: string, corrections: DataCorrection[]): Promise<void> {
for (const correction of corrections) {
await this.updateUserData(userId, correction.field, correction.newValue);
await this.logDataCorrection(userId, correction);
}
}
async rightToErasure(userId: string): Promise<void> {
// Soft delete (retain for legal requirements)
await this.anonymizeUserData(userId);
// Hard delete after retention period
await this.scheduleDataDeletion(userId, this.getRetentionPeriod());
// Confirmation to user
await this.confirmDataErasure(userId);
}
async rightToPortability(userId: string): Promise<DataExport> {
const userData = await this.rightToAccess(userId);
return {
format: 'JSON',
data: userData,
schema: 'teachit-data-schema-v1.0',
};
}
async rightToObjection(userId: string, processingType: string): Promise<void> {
await this.stopDataProcessing(userId, processingType);
await this.logObjection(userId, processingType);
}
}
Educational Data Privacy
FERPA Compliance (US)
// FERPA compliance implementation
export class FERPACompliance {
async ensurePrivacy(studentId: string): Promise<PrivacyStatus> {
const status: PrivacyStatus = {
studentId,
timestamp: new Date().toISOString(),
checks: [],
compliant: true,
};
// Check directory information
const directoryCheck = await this.checkDirectoryInformation(studentId);
status.checks.push(directoryCheck);
// Check educational records
const recordsCheck = await this.checkEducationalRecords(studentId);
status.checks.push(recordsCheck);
// Check parental access
const parentalCheck = await this.checkParentalAccess(studentId);
status.checks.push(parentalCheck);
status.compliant = status.checks.every(check => check.compliant);
return status;
}
private async checkEducationalRecords(studentId: string): Promise<ComplianceCheck> {
const records = await this.getEducationalRecords(studentId);
return {
type: 'EDUCATIONAL_RECORDS',
compliant: this.validateEducationalRecords(records),
details: {
recordCount: records.length,
accessLevel: this.getAccessLevel(records),
lastAccessed: this.getLastAccessed(records),
},
};
}
}
🔧 SECURITY BEST PRACTICES
Development Security
Secure Coding Guidelines
// Security coding standards
export const securityGuidelines = {
authentication: [
'Use strong password policies',
'Implement multi-factor authentication',
'Use secure session management',
'Implement proper logout functionality',
],
dataProtection: [
'Encrypt sensitive data at rest',
'Use HTTPS for all communications',
'Implement proper input validation',
'Use parameterized queries',
],
errorHandling: [
'Don\'t expose sensitive information in error messages',
'Log security events appropriately',
'Implement graceful error handling',
'Use generic error messages for users',
],
configuration: [
'Use environment variables for secrets',
'Implement proper CORS policies',
'Use secure headers',
'Disable unnecessary features',
],
};
Security Testing Checklist
// Security testing checklist
export const securityChecklist = {
authentication: [
'Password strength requirements',
'Account lockout mechanisms',
'Session timeout implementation',
'Multi-factor authentication',
'Secure password reset',
],
authorization: [
'Role-based access control',
'Least privilege principle',
'Resource access validation',
'API endpoint protection',
'Cross-origin resource sharing',
],
dataProtection: [
'Data encryption at rest',
'Data encryption in transit',
'Secure key management',
'Data retention policies',
'Privacy by design',
],
infrastructure: [
'Network security configuration',
'Server hardening',
'Database security',
'Backup encryption',
'Monitoring and logging',
],
};
📊 SECURITY METRICS
Key Performance Indicators
Security Metrics
// Security KPIs
export const securityMetrics = {
authentication: {
'Failed login attempts': 'count per hour',
'Account lockouts': 'count per day',
'MFA adoption rate': 'percentage',
'Password reset requests': 'count per day',
},
authorization: {
'Access denied events': 'count per hour',
'Permission changes': 'count per day',
'Role assignments': 'count per week',
'Privilege escalation attempts': 'count per day',
},
dataProtection: {
'Data encryption coverage': 'percentage',
'Data access violations': 'count per day',
'PII exposure incidents': 'count per month',
'Data retention compliance': 'percentage',
},
incidents: {
'Security incidents': 'count per month',
'Incident response time': 'minutes',
'Vulnerability remediation time': 'days',
'Security testing coverage': 'percentage',
},
};
Security Dashboard
// Security monitoring dashboard
export class SecurityDashboard {
async getSecurityMetrics(): Promise<SecurityMetrics> {
return {
authentication: await this.getAuthenticationMetrics(),
authorization: await this.getAuthorizationMetrics(),
dataProtection: await this.getDataProtectionMetrics(),
incidents: await this.getIncidentMetrics(),
compliance: await this.getComplianceMetrics(),
};
}
private async getAuthenticationMetrics(): Promise<AuthMetrics> {
const now = new Date();
const hourAgo = new Date(now.getTime() - 60 * 60 * 1000);
const failedLogins = await this.countFailedLogins(hourAgo, now);
const accountLockouts = await this.countAccountLockouts(hourAgo, now);
const mfaAdoption = await this.calculateMFAAdoption();
return {
failedLogins,
accountLockouts,
mfaAdoption,
passwordResets: await this.countPasswordResets(hourAgo, now),
};
}
}
📞 SECURITY CONTACTS
Security Team
Incident Response Team
- Security Lead: security@teachit.app
- Incident Response: incidents@teachit.app
- Vulnerability Reports: vulnerabilities@teachit.app
- Compliance Officer: compliance@teachit.app
Emergency Contacts
- Critical Incidents: +1-800-SECURITY
- Data Breach: +1-800-BREACH
- Legal Counsel: legal@teachit.app
- Law Enforcement: emergency@teachit.app
Reporting Security Issues
Vulnerability Disclosure
- Email: security@teachit.app
- PGP Key: Available on request
- Response Time: Within 24 hours
- Bounty Program: Available for qualifying reports
Data Subject Requests
- Access Requests: privacy@teachit.app
- Deletion Requests: delete@teachit.app
- Correction Requests: corrections@teachit.app
- Complaints: complaints@teachit.app
✅ SECURITY CHECKLIST
Daily Security Checks
- Review security logs for anomalies
- Monitor failed authentication attempts
- Check system resource utilization
- Verify backup completion
- Review access request approvals
Weekly Security Reviews
- Analyze security metrics trends
- Review incident reports
- Update threat intelligence
- Check compliance status
- Review security patch status
Monthly Security Audits
- Conduct vulnerability scans
- Review access controls
- Update security policies
- Perform penetration testing
- Review data retention compliance
Quarterly Security Assessments
- Full security audit
- Risk assessment update
- Security training review
- Compliance audit
- Incident response drill
Last Updated: 2026-05-06 Version: 1.0.0 Security Team: Information Security