Threat actor

KillSec

In 3 briefs, most recently 2 October 2026. RSS for this tag

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Coverage in DanSec Daily

  1. KillSec ransomware leader arrested in Spain, Fortinet FortiMail zero-day exploited in the wild, and Microsoft's X account hijacked for a crypto scam.
  2. Bitget $387.5M zero-day theft, Pentagon DMDC breach of 3M+ service members' records, and Zammad zero-day chain hitting DIVD, plus Citrix and Cisco exploitation.
  3. Npm supply chain compromise of 40+ packages, KillSec ransomware breach of a Brazilian healthcare software provider, and Google's LERS account abuse.