Security and
Best Practices

Complete security guide to protect your applications, data and transactions. Implement industry best practices to ensure maximum security.

5

Practices

1h

Approx. time

Advanced

Level

100%

Coverage

Implementation Guide

5 fundamental security pillars

1. Secure Authentication

Implement robust multi-factor authentication

8 min
Intermediate

Overview

Set up a secure authentication system that includes two-factor authentication (2FA), session management and robust identity validation.

Instructions

  1. 1Implement two-factor authentication (2FA)
  2. 2Configure secure session management
  3. 3Validate identity with official documents
  4. 4Implement rate limiting on login
  5. 5Use JWT tokens with short expiration

Security Tips

  • Use TOTP for 2FA instead of SMS
  • Implement automatic logout on inactivity
  • Validate tokens on each request
  • Use mandatory HTTPS

Implementation Example

// Implementación de 2FA
import { authenticator } from 'otplib';
import QRCode from 'qrcode';

class AuthService {
  generateSecret(userId) {
    const secret = authenticator.generateSecret();
    const otpauth = authenticator.keyuri(
      userId, 
      'DXBNK', 
      secret
    );
    return { secret, otpauth };
  }

  verifyToken(token, secret) {
    return authenticator.verify({ token, secret });
  }

  async loginWith2FA(email, password, token) {
    const user = await this.validateCredentials(email, password);
    const isValidToken = this.verifyToken(token, user.twoFactorSecret);
    
    if (!isValidToken) {
      throw new Error('Token 2FA inválido');
    }
    
    return this.generateJWT(user);
  }
}

// Middleware de autenticación
const requireAuth = async (req, res, next) => {
  const token = req.headers.authorization?.split(' ')[1];
  
  if (!token) {
    return res.status(401).json({ error: 'No token provided' });
  }
  
  try {
    const decoded = jwt.verify(token, process.env.JWT_SECRET);
    req.user = decoded;
    next();
  } catch (error) {
    res.status(401).json({ error: 'Invalid token' });
  }
};

2. Data Encryption

Protect sensitive data in transit and at rest

10 min
Advanced

3. Validation and Sanitization

Prevent injections and input attacks

6 min
Intermediate

4. Monitoring and Auditing

Detect and respond to threats in real-time

12 min
Advanced

5. Regulatory Compliance

Comply with regulations and security standards

15 min
Advanced

Security Features

Multi-factor authentication (MFA)
End-to-end encryption
KYC identity validation
24/7 monitoring
Complete transaction auditing
Fraud protection
GDPR and PCI-DSS compliance
Data backup and recovery

Threat Prevention

How to protect against the most common threats

SQL Injection

Use prepared statements and input validation

XSS (Cross-Site Scripting)

Sanitize outputs and use Content Security Policy

CSRF (Cross-Site Request Forgery)

Implement CSRF tokens in all forms

Man-in-the-Middle

Use TLS 1.3 and certificate pinning

Brute Force Attacks

Rate limiting and account lockout policies

Data Breaches

Encryption at rest and strict access controls

Need security consulting?

Our team of security experts can help you implement best practices and audit your application.