Hackmageddon cyber attacks timelines (Paolo Passeri)
72 South Korean organizations across financial, healthcare, and other sectors (via 15 compromised watering-hole websites) · 2026-07-30
South Korean authorities (KISA, NIS, NPA, FSI) and AhnLab, S2W, ENKI Whitehat, and Plainbit disclose 'Operation Double Barrel,' a watering-hole campaign exploiting a zero-day in financial-security software AnySign4PC via 15 compromised legitimate websites to silently deploy SIGNBT and COPPERHEDGE backdoors, with evidence found at 72 organizations. [Date Occurred: Since H2 2025; Date Discovered: Since H2 2025]