Protecting your app (and wallet) against malicious traffic

What this post added

This post details how Vercel's Firewall can be configured with custom rules to block or challenge malicious traffic based on IP address, JA4 fingerprints, and other criteria. It also introduces Attack Challenge Mode for temporary traffic verification and discusses real-time usage and spend controls, including spend limits and automatic app pausing. Code optimizations like enabling Fluid compute and transformation-based image optimization, and moving large media files to Vercel Blob storage are also highlighted as methods to protect applications and manage costs. The post also mentions the default enablement of deployment protection for new projects.