News

Rejected By Microsoft, 3 Defender Zero-Days Are Now Actively Exploited

  • Chris Harper--Hot Hardware
  • published date: 2026-04-17 18:51:00 UTC

A cyber security expert that goes by the name Nightmare-Eclipse attempted to disclose three zero days to Microsoft, but the first attempt reportedly ended in failure, so he elected to release it into the wild. That first exploit was dubbed "BlueHammer". Short…

A cyber security expert that goes by the name Nightmare-Eclipse attempted to disclose three zero day exploits to Microsoft, but the first attempt went so poorly, so he elected to release it into the … [+3989 chars]