How to build a service website for better security

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To build a service website with better security, start by implementing secure coding practices and ensuring all software components, frameworks, and plugins are regularly updated to their latest versions to patch known vulnerabilities. Protect data in transit by always enforcing HTTPS with robust TLS certificates, and encrypt sensitive data at rest using strong algorithms. For user authentication, mandate strong, unique password policies, consider multi-factor authentication (MFA), and implement proper session management to prevent hijacking. Crucially, rigorous input validation and sanitization are essential to mitigate common threats like SQL injection and cross-site scripting (XSS) attacks. Furthermore, employ Web Application Firewalls (WAFs), conduct regular security audits, vulnerability scanning, and penetration testing to proactively identify and address weaknesses before they can be exploited.