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#1 The Hacker News general June 19, 2026 at 14:00 UTC

CISA Warns Fortinet Customers as FortiBleed Hits 86,644 FortiGate Devices

By [email protected] (The Hacker News)

AI Summary

CISA issued an urgent warning about 'FortiBleed,' a large-scale credential theft campaign targeting Fortinet FortiGate firewalls and VPNs — with 86,644 devices compromised, representing roughly half of all internet-accessible Fortinet appliances. The campaign is attributed to Russian-speaking threat actors and CISA is urging immediate remediation of affected devices. Security teams running Fortinet edge infrastructure should treat this as a critical priority given the scale of exposure.

Relevance score: 92.0/100

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