FBI Warns FortiBleed Remains Active After Amassing 86,644 Fortinet Device Credentials: The Hacker News Research

Executive Summary

According to security intelligence published by The Hacker News, The U.S. Federal Bureau of Investigation (FBI) and Secret Service (USSS) on Tuesday warned that the FortiBleed credential harvesting campaign remains an active threat aimed at internet-facing Fortinet FortiGate firewalls and secure socket layer (SSL) virtual private network (VPN) gateways.

"The campaign exploits reused or leaked credentials and legacy SHA-256 password storage, enabling threat actors to harvest and crack authentication data at scale," the agencies said. "Initial findings indicate attackers are continuing to scan internet-exposed Fortinet firewalls using previously obtained compromised credentials.

FortiBleed was first documented by SOCRadar in Hudson Rock in June 2026, with the activity targeting thousands of Fortinet firewalls as part of a global campaign. In all, the Russian-speaking operation is estimated to have netted more than 86,644 working device credentials spanning 194 countries as of June 19, 2026.

Technical Context

Modern web infrastructure requires continuous validation of certificate lifecycle states and cryptographic configurations. Security advisories from The Hacker News emphasize the necessity of proactive endpoint audits and disciplined configuration management.

Key Considerations for Infrastructure Teams

• Cryptographic Agility: Regularly audit active cipher suites and certificate configurations to eliminate deprecated primitives.
• Automated Revocation & Lifecycle Monitoring: Track certificate renewal deadlines and revocation notices across all operational environments.
• Endpoint Verification: Verify that service endpoints correctly present full certificate chains to prevent handshake failures.

Recommended Mitigation Steps

1. Audit active public endpoints for certificate expiration deadlines within the next 30 days.
2. Verify that automated renewal hooks reload web server configurations upon certificate issuance.
3. Configure real-time rogue certificate detection across your domain names.

Editorial Notice: This bulletin is an independent editorial summary based on reporting and disclosures published by The Hacker News. CertificateGuardian curates industry intelligence to assist infrastructure teams in securing web endpoints.