KnownSec breach: What we know so far.

After the initial buzz around the data leak from Chinese cybersecurity firm KnownSec, a few more details have since emerged. Here is our take.

Cover of KnownSec's offering to the Chinese military (unfortunately we could not obtain the rest of the presentation).

Update: 13 Nov 2025 - All indicators so far point toward the fact that this leak is actually coming from an old data breach of KnownSec from 2023. According to some information from back then, the leak didn't hold any “extreme sensitive …