FortiBleed: Credential Reuse, Legacy Hashes, and the Risk of Internet-Exposed FortiGate Devices

Key Takeaways FortiBleed refers to June 2026 public reporting of large-scale credential exposure and abuse targeting internet-reachable FortiGate management and SSL-VPN gateways driven by credential reuse and brute-force, not a single new zero-day. Risk is highest for internet-exposed FortiGate...

FortiBleed Credential Theft Connected to INC and Lynx Ransomware

FortiBleed, the Fortinet credential theft campaign, is now connected to INC Ransom and Lynx, with a Nextcloud zero-day vulnerability also under investigation...

FortiBleed Credential Theft Linked to INC and Lynx Ransomware Operations

The recently discovered financially-motivated FortiBleed campaign has been attributed to INC and Lynx ransomware operations, indicating that the verified, stolen credentials were intended for follow-on intrusions. "An operator tied to FortiBleed's infrastructure was found actively working...

Dismantling FortiBleed: Inside a Russian Fortinet Compromise Operation

SOCRadar Threat Research Unit STRU has reported FortiBleed, a large-scale credential-harvesting operation targeting more than 430,000 FortiGate firewalls globally. The investigation also confirmed the breach of a NATO-aligned defense contractor. Based on the observed activity, the threat actor is...

FortiBleed Targeted FortiGate Firewalls in 110 Million-Credential Harvesting Operation

A Russian-speaking initial access broker IAB driven by financial gain is assessed to be behind a large-scale credential-harvesting operation known as FortiBleed that has targeted over 430,000 FortiGate firewalls globally. The campaign, active since February 2026, involves collecting credential...

⚡ Weekly Recap: Browser Bugs, EDR Killers, TV Botnet, OpenBSD Flaw, Android Trojan, and More

It’s Monday again. This week’s threat list looks painfully familiar: abused integrations, fake tools, poisoned websites, ransomware crews trying to shut down security tools, and mobile malware asking for way too much control. The annoying part is how little of this feels new. Weak credentials,...

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

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Thursday urged Fortinet customers with FortiGate appliances to take steps to secure against ongoing malicious activity aimed at thousands of internet-accessible devices. The sweeping campaign, believed to be the work of...

FortiBleed Attack Exposes Fortinet Firewall Credentials in 194 Countries

Researchers say FortiBleed used stolen and tested credentials to access exposed Fortinet firewalls, putting major organizations and public agencies at risk now...