News

Russian hackers exploit Exchange OWA zero-day for long-term mailbox access

  • Ionut Ilascu--BleepingComputer
  • published date: 2026-07-29 23:44:07 UTC

The Russian state-sponsored hacking group Laundry Bear, also known as Void Blizzard, is exploiting an Exchange Outlook Web Access vulnerability in email campaigns to deliver a sophisticated backdoor called OWAReaper. [...]

The Russian state-sponsored hacking group Laundry Bear, also known as Void Blizzard, is exploiting an Exchange Outlook Web Access vulnerability in email campaigns to deliver a sophisticated backdoor … [+6158 chars]