Building Resilient Detection Suppressions
When a false positive occurs, how do you approach tuning your detector? Do you allowlist that one event? That can lead to another false positive tomorrow. This article will provide an example of how we build resilient suppressions.
Raise your hand if you’ve worked on suppressing a false positive for a detector and then the very next day, it’s back in your “fix” queue with another false positive. I’d expect almost everyone who’s worked in detection engineering for any period of time has their hand raised or is nodding along. Why does this happen? Well, sometimes the detector itself isn’t very good and it’s alerting on a lot of benign behavior. But sometimes, the answer is that…