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  5. FBI Warns Ongoing FortiBleed Attacks Are Locking Admins Out of 86,000 Fortinet Devices
CybersecurityMAG 7Bearish
•
2026-10-07•2 min read

FBI Warns Ongoing FortiBleed Attacks Are Locking Admins Out of 86,000 Fortinet Devices

Zubiqo Take
QuoteThreads

“The most devastating attacks aren't sophisticated zero-days; they are automated scripts combining leaked credentials with cheap GPU clusters to exploit legacy hashing on core security appliances.”

FBI Warns Ongoing FortiBleed Attacks Are Locking Admins Out of 86,000 Fortinet Devices
📷 Image Source: BleepingComputer

Executive Summary

  • •The FBI warns that hackers are actively exploiting the FortiBleed leak to lock legitimate administrators out of Fortinet firewalls.
  • •Threat actors have compromised an estimated 86,644 devices using distributed GPU clusters to crack legacy password hashes offline.
  • •The compromised access is being packaged and sold to ransomware groups like INC and Lynx.

Community Sentiment

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Key Developments & Data

The FBI issued a warning that hackers are actively locking administrators out of Fortinet FortiGate firewalls and SSL VPN gateways using the FortiBleed exploit chain. Attackers are leveraging distributed GPU clusters running Hashcat and Hashtopolis to crack stolen legacy SHA-256 password hashes offline. According to SOCRadar data, the credential-harvesting operation has compromised at least 86,644 devices globally. The compromised access is actively being packaged and sold to ransomware affiliates, specifically benefiting the INC/Lynx and Payload groups. "The FortiBleed attack chain has been observed as an initial entry point for ransomware affiliates." — FBI

Zubiqo Strategic Assessment

Primary Impact

Enterprise networks and critical infrastructure organizations relying on exposed Fortinet SSL VPNs and legacy SHA-256 password hashing.

Strategic Shift

The commoditization of access brokering, where initial access vectors are automated via scripts and GPU clusters to feed established ransomware-as-a-service (RaaS) affiliates.

The Ripple Effect

If organizations fail to mandate PBKDF2 and MFA, the offline cracking of harvested configurations will ensure continued persistence even after primary vendor vulnerabilities are patched.

This intelligence assessment is generated by Zubiqo's AI for informational purposes only.

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#fortinet#ransomware#fbi#fortibleed#cyber
Read original on BleepingComputer
Zubiqo MethodologyAI Synthesis

Synthesized from linked market reporting using AI extraction under Zubiqo's editorial standards. Have a correction? Contact our desk.

Event Magnitude7 / 10
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