Vercel has revealed that its security incident, originating from a breach in Context.ai, is more serious than previously thought. After expanding its investigation, the company identified an additional set of compromised customer accounts. Unauthorized access to its internal systems was achieved through this initial vulnerability, forcing the company to review new network requests and affected environments.
How the expansion of indicators of compromise revealed the true scope 🔍
Vercel's methodology for finding the newly affected parties included reviewing an additional set of indicators of compromise (IoC). By analyzing network requests and internal environment behavior, security engineers were able to map the attacker's lateral movement. This deep technical analysis revealed that the incident was not limited to Context.ai, but compromised other accounts through similar attack vectors or indirect connections.
The domino effect no one had anticipated 😅
It seems that at Vercel they thought the problem was just an uninvited guest at a party, but it turns out the intruder brought the whole family. The investigation expanded, and, as if by chance, more compromised accounts appeared. The worst part is that now they have to check every corner of the system, like when you look for your keys at home and end up finding socks lost three years ago. Good thing they didn't order pizza for everyone.