After the $82K Gemini API key incident — here’s why GCP billing alerts won’t protect you in real-time

The recent $82K incident got me thinking about why GCP’s native tools failed to prevent it. The core issue most people miss: GCP budget alerts are based on billing data — which is delayed by several hours. By the time the alert fires, the damage is already done. Quota limits are even worse — they throttle requests but never revoke the key. An attacker just keeps dripping through. The only reliable protection is monitoring raw API request count, which GCP updates in near real-time. Set a threshold per key — the moment it’s crossed, revoke immediately. I’ve been building a tool that does exactly this. Happy to discuss the technical approach or the IAM architecture in the comments. Early access at cloudsentinel(.)dev if anyone is interested. submitted by /u/daudmalik06 [link] [comments]Technical Information Security Content & DiscussionRead More