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What are the common technical means to prevent web page tampering?

Created on 2025-07-14 15:03:52
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Common technical means to prevent web page tampering include:

  1. File Integrity Monitoring (FIM): This involves regularly checking web files for unauthorized changes. Tools can compare current file hashes with baseline hashes to detect tampering.
    Example: A website uses a script to generate MD5 hashes of HTML, CSS, and JS files daily. If a hash mismatch is detected, an alert is triggered.

  2. Web Application Firewalls (WAF): WAFs filter malicious traffic and block attempts to inject or modify web content.
    Example: A WAF like Tencent Cloud WAF detects SQL injection attempts and prevents attackers from altering database-driven web pages.

  3. Content Security Policy (CSP): CSP restricts the sources of executable scripts, preventing attackers from injecting malicious code.
    Example: A website sets a CSP header to allow scripts only from its own domain and trusted CDNs, blocking inline scripts.

  4. Version Control Systems (VCS): Storing web files in a VCS like Git ensures changes are tracked and can be reverted if tampering is detected.
    Example: Developers use Git to manage a website’s codebase. If unauthorized changes are pushed, they can revert to a previous commit.

  5. Server-Side Protection: Measures like file system permissions, restricted access to web directories, and regular backups prevent unauthorized modifications.
    Example: A server configures strict file permissions (e.g., chmod 644 for web files) and uses Tencent Cloud’s automated backups to restore tampered files.

  6. Real-Time Monitoring and Alerts: Tools like intrusion detection systems (IDS) monitor web servers for suspicious activity.
    Example: Tencent Cloud’s Host Security Service detects abnormal file changes and sends instant alerts to administrators.

  7. Secure Coding Practices: Preventing vulnerabilities like XSS and CSRF reduces the risk of tampering.
    Example: A website validates and sanitizes all user inputs to prevent script injection attacks.

For cloud-hosted websites, Tencent Cloud offers integrated solutions like WAF, Host Security, and automated backups to enhance protection against tampering.