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FortiBleed
FortiBleed is a credential-harvesting campaign identified by researcher Volodymyr Diachenko in June 2026 that compiled 86,644 Fortinet FortiGate credentials across 194 countries via credential reuse and traffic interception, attributed to a Russian-speaking actor with NATO-weighted targeting.
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#11 16 Jul
Mentioned in: CISA's KEV list runs a month late
Cybersecurity: Threats and Defences#10 8 Jul
Underpinned confirmed ransomware deployments and administrator compromises
Cybersecurity: Threats and Defences: One operator ran both ransomware brands#9 4 Jul
Mentioned in: BOD 26-04, a fortnight of triage
Cybersecurity: Threats and Defences#9 1 Jul
Mentioned in: Lynx crew cashes in FortiBleed haul
Cybersecurity: Threats and Defences#8 18 Jun