How to Secure Your Windsurf App
Last updated: January 12, 2026
Windsurf's Cascade agent enables rapid development, but AI-generated code requires security review. This guide covers securing your Windsurf workflow and the applications you build.
Step-by-Step Security Guide
1. Use Ask Mode for Sensitive Operations
Configure Cascade to ask before executing commands. Review all proposed file changes before accepting.
2. Configure File Exclusions
Windsurf respects .gitignore. Ensure all sensitive files are listed to prevent them from being sent to AI servers.
# .gitignore
.env*
*.pem
*.key
credentials/3. Review Cascade-Generated Code
Before accepting multi-file changes from Cascade, review the diff carefully. AI can make unintended modifications.
4. Use Version Control Checkpoints
Commit or stash changes before running Cascade flows. This allows easy rollback if something goes wrong.
5. Audit MCP Servers
Like Cursor, Windsurf uses MCP servers that can execute code. Only install trusted servers.
6. Scan Before Deployment
Run VAS on your deployed application to catch vulnerabilities in AI-generated code.
Common Security Mistakes
Avoid these common Windsurf security pitfalls:
Recommended Security Tools
Use these tools to maintain security throughout development:
Ready to Secure Your App?
Security is an ongoing process, not a one-time checklist. After implementing these steps, use VAS to verify your Windsurf app is secure before launch, and consider regular scans as you add new features.
Frequently Asked Questions
Is Cascade safe to use?
Cascade is safe with precautions: use Ask mode, review all changes, don't share secrets, and keep version control checkpoints. It's a powerful tool that requires careful use.
Can Cascade modify or delete files?
Yes, Cascade can execute file operations if you allow it. Use Ask mode to review operations before they execute. Keep your work in version control for easy recovery.