Frontend security has become a must-have skill in 2025. Attacks like XSS, CSRF, token theft, weak CSP policies, and insecure client-side storage are still the most common vulnerabilities found in modern apps.
I just published a complete guide covering:
- XSS prevention (escaping, sanitization, Trusted Types)
- CSRF protection methods
- Safe token storage (cookies vs localStorage)
- Proper Content Security Policy (CSP) usage
- Securing API calls from the frontend
- A practical security checklist for real-world apps
If you're building SPAs, dashboards, or any consumer-facing UI, this guide will help you avoid the most common security pitfalls.
👉 Read the full guide:
https://www.frontendtools.tech/blog/frontend-security-essentials-guide-2025
I’ve also integrated useful tools like a JSON Validator and Base64 Encoder to help with debugging and secure development workflows.
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