The Federal Bureau of Investigation (FBI) and partners are releasing this joint advisory to disseminate known RansomHub ransomware IOCs and TTPs. These have been identified through FBI threat response activities and third-party reporting as recently as August 2024.
RansomHub is a ransomware-as-a-service variant—formerly known as Cyclops and Knight—that has established itself as an efficient and successful service model (recently attracting high-profile affiliates from other prominent variants such as LockBit and ALPHV). Since its inception in February 2024, RansomHub has encrypted and exfiltrated data from at least 210 victims representing the water and wastewater, information technology, government services and facilities, healthcare and public health, emergency services, food and agriculture, financial services, commercial facilities, critical manufacturing, transportation, and communications critical infrastructure sectors.
Read more…
Source: U.S. Federal Bureau of Investigation Cyber Division
Related:
- WhisperPair exposes Bluetooth earbuds and headphones to tracking and eavesdropping
January 16, 2026
WhisperPair is a set of attacks that lets an attacker hijack many popular Bluetooth audio accessories that use Google Fast Pair and, in some cases, even track their location via Google’s Find Hub network—all without requiring any user interaction. Researchers at the Belgian University of Leuven revealed a collection of vulnerabilities they found in audio accessories ...
- German police add Black Basta boss to EU most-wanted list
January 16, 2026
German cops have added Russian national Oleg Evgenievich Nefekov to their list of most-wanted criminals for his services to ransomware. Nefekov, 35, is accused of spearheading the Black Basta ransomware operation, which suffered a similar fate as Conti last year – ceasing activity after a major internal leak. His name and face also now appear ...
- Cisco has finally patched a maximum-level security issue
January 16, 2026
A maximum-severity vulnerability in certain Cisco products has finally been addressed after allegedly being exploited by Chinese hackers for several weeks. In mid-December 2025, the networking giant disclosed a remote code execution (RCE) vulnerability in AsyncOS that affects Secure Email Gateway (SEG) and Secure Email and Web Manager (SEWM) appliances. It tracked the flaw as CVE-2025-20393 ...
- “Reprompt” attack lets attackers steal data from Microsoft Copilot
January 15, 2026
Researchers found a method to steal data which bypasses Microsoft Copilot’s built-in safety mechanisms. The attack flow, called Reprompt, abuses how Microsoft Copilot handled URL parameters in order to hijack a user’s existing Copilot Personal session. Copilot is an AI assistant which connects to a personal account and is integrated into Windows, the Edge browser, and ...
- DeadLock Ransomware: Smart Contracts for Malicious Purposes
January 15, 2026
DeadLock is a ransomware family discovered in July 2025. It is notable for not being associated with any known affiliate programs and for lacking a Data Leak Site (DLS). This, combined with the limited number of reported victims, has resulted in low exposure for the group. However, Group-IB specialists have discovered an interesting use of ...
- Microsoft disrupts global cybercrime subscription service responsible for millions in fraud losses
January 14, 2026
Today, Microsoft is announcing a coordinated legal action in the United States and, for the first time, the United Kingdom to disrupt RedVDS, a global cybercrime subscription service fueling millions in fraud losses. These efforts are part of a broader joint operation with international law enforcement, including German authorities and Europol, which has allowed Microsoft and ...