Latest cybersecurity reporting from selected sources.

A 41-year-old former ransomware negotiator has been sentenced to nearly six years (i.e., 70 months) in prison in the U.S. for their role in conspiring with the now-defunct BlackCat ransomware operators to extort multiple victims and working with two other cybersecurity professionals to target additional victims in 2023

Cybersecurity researchers have charted the evolution of INC from an nascent ransomware-as-a-service (RaaS) operation to one of the most prolific cybercrime groups in 2026, claiming no less than 830 victims since August 2023

A new analysis of The Gentlemen operation has revealed that the financially motivated threat group initially operated as an affiliate responsible for conducting double extortion attacks, while leveraging resources from various ransomware-as-a-service (RaaS) schemes like LockBit (aka Tenacious Mantis), Qilin (aka Pestilent Mantis), and Medusa (aka Venomous Mantis)

The U.S. Department of Justice (DoJ) on Thursday announced the sentencing of two cybersecurity professionals to four years each in prison for their role in facilitating BlackCat ransomware attacks in 2023

Threat hunters are warning that the cybercriminal operation known as VECT 2.0 acts more like a wiper than a ransomware due to a critical flaw in its encryption implementation across Windows, Linux, and ESXi variants that renders recovery impossible even for the threat actors

Threat actors associated with The Gentlemen ransomware‑as‑a‑service (RaaS) operation have been observed attempting to deploy a known proxy malware called SystemBC

INTERPOL on Friday announced the takedown of 45,000 malicious IP addresses and servers used in connection with phishing, malware, and ransomware campaigns, as part of the agency's ongoing efforts to dismantle criminal networks, disrupt emerging threats, and safeguard victims from scams

South Korea's financial sector has been targeted by what has been described as a sophisticated supply chain attack that led to the deployment of Qilin ransomware

Key Takeaways: 85 active ransomware and extortion groups observed in Q3 2025, reflecting the most decentralized ransomware ecosystem to date

The ransomware group known as Qilin (aka Agenda, Gold Feather, and Water Galura) has claimed more than 40 victims every month since the start of 2025, barring January, with the number of postings on its data leak site touching a high of 100 cases in June

Cybersecurity researchers have discovered a new variant of an Android banking trojan called HOOK that features ransomware-style overlay screens to display extortion messages

Cybersecurity experts have released a decryptor for a ransomware strain called FunkSec, allowing victims to recover access to their files for free

A newly emerged ransomware-as-a-service (RaaS) gang called Chaos is likely made up of former members of the BlackSuit crew, as the latter's dark web infrastructure has been the subject of a law enforcement seizure

The U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) has levied sanctions against Russia-based bulletproof hosting (BPH) service provider Aeza Group to assist threat actors in their malicious activities and targeting victims in the country and across the world

The threat actors behind the Qilin ransomware-as-a-service (RaaS) scheme are now offering legal counsel for affiliates to put more pressure on victims to pay up, as the cybercrime group intensifies its activity and tries to fill the void left by its rivals

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday disclosed that ransomware actors are targeting unpatched SimpleHelp Remote Monitoring and Management (RMM) instances to compromise customers of an unnamed utility billing software provider

Fake installers for popular artificial intelligence (AI) tools like OpenAI ChatGPT and InVideo AI are being used as lures to propagate various threats, such as the CyberLock and Lucky_Gh0$t ransomware families, and a new malware dubbed Numero

A ransomware-as-a-service (RaaS) operation called VanHelsing has already claimed three victims since it launched on March 7, 2025

The threat actors behind the Medusa ransomware have claimed nearly 400 victims since it first emerged in January 2023, with the financially motivated attacks witnessing a 42% increase between 2023 and 2024

The threat actors behind the RansomHub ransomware-as-a-service (RaaS) scheme have been observed leveraging now-patched security flaws in Microsoft Active Directory and the Netlogon protocol to escalate privileges and gain unauthorized access to a victim network's domain controller as part of their post-compromise strategy