Both DomainTools and Resecurity have recently covered last year's KnownSec's data leak
tl;dr: This is not your typical govt cyber contractor

DomainTools Investigations | DTI
THE KNOWNSEC LEAK: Yet Another Leak of Chinaβs Contractor-Driven Cyber-Espionage Ecosystem - DomainTools Investigations | DTI
Leaked Knownsec documents reveal Chinaβs cyberespionage ecosystem. Analyze TargetDB, GhostX, and 404 Labβs role in global reconnaissance and cr...

Resecurity | Knownsec Data Breach: A Trove of Espionage Tradecraft with an Insider Narrative

