Fake BianLian Ransomware Letters in Circulation

At a glance: The FBI is warning of a mail-based fraud involving letters sent to businesses in the U.S. These letters resemble online ransomware notes demanding payment via Bitcoin. Rapid7 examined a mail-based ransom demand sent to a customer from a local postcode. There is no evidence that any o...

Scammers Pose as Cl0p Ransomware to Send Fake Extortion Letters

Scammers are sending fake extortion and ransom demands while posing as ransomware gangs, including the notorious Cl0p ransomware.…...

Ransomware threat mailed in letters to business owners

Business owners and CEOs across the United States received customized ransomware threats this month from the most unusual of places—letters in the mail. The letters, which were first reported by multiple cybersecurity researchers, claim to come from a ransomware group called BianLian. But since...

Medusa Ransomware Hits 40+ Victims in 2025, Demands $100K–$15M Ransom

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. In the first two months of 2025 alone, the group has claimed over 40 attacks, according to...

Scammers Mailing Ransom Letters While Posing as BianLian Ransomware

Scammers are impersonating BianLian ransomware, and mailing fake ransom letters to businesses. Learn the red flags and how…...

Leaked Black Basta Ransomware Chat Logs Reveal Inner Workings and Internal Conflicts

More than a year's worth of internal chat logs from a ransomware gang known as Black Basta have been published online in a leak that provides unprecedented visibility into their tactics and internal conflicts among its members. The Russian-language chats on the Matrix messaging platform between...

A week in security (February 3 – February 9)

Last week on Malwarebytes Labs: WhatsApp says Paragon is spying on specific users New AI "agents" could hold people for ransom in 2025 Valley News Live exposed more than a million job seeker’s resumes Small business owners, secure your web shop University site cloned to evade ad detection...

Ransomware Extortion Drops to $813.5M in 2024, Down from $1.25B in 2023

Ransomware attacks netted cybercrime groups a total of $813.5 million in 2024, a decline from $1.25 billion in 2023. The total amount extorted during the first half of 2024 stood at $459.8 million, blockchain intelligence firm Chainalysis said, adding payment activity slumped after July 2024 by...

New AI “agents” could hold people for ransom in 2025

A paradigm shift in technology is hurtling towards us, and it could change everything we know about cybersecurity. Uhh, again, that is. When ChatGPT was unveiled to the public in late 2022, security experts looked on with cautious optimism, excited about the new technology but concerned about its...

The 2024 Ransomware Landscape: Looking back on another painful year

The ransomware landscape in 2024 continued to evolve at a rapid pace, outgrowing many of the trends we saw in 2023. Threat actors remained relentless and innovative, targeting organizations of all sizes and sectors. In this post, we’ll examine the latest data points, discuss notable groups, and...

The 2024 Ransomware Landscape: Looking back on another painful year

The ransomware landscape in 2024 continued to evolve at a rapid pace, outgrowing many of the trends we saw in 2023. Threat actors remained relentless and innovative, targeting organizations of all sizes and sectors. In this post, we’ll examine the latest data points, discuss notable groups, and...

Ransomware on ESXi: The Mechanization of Virtualized Attacks

In 2024, ransomware attacks targeting VMware ESXi servers reached alarming levels, with the average ransom demand skyrocketing to $5 million. With approximately 8,000 ESXi hosts exposed directly to the internet according to Shodan, the operational and business impact of these attacks is profound...

AI-Driven Ransomware FunkSec Targets 85 Victims Using Double Extortion Tactics

Cybersecurity researchers have shed light on a nascent artificial intelligence AI assisted ransomware family called FunkSec that sprang forth in late 2024, and has claimed more than 85 victims to date. "The group uses double extortion tactics, combining data theft with encryption to pressure...

New 'Helldown' Ransomware Variant Expands Attacks to VMware and Linux Systems

Cybersecurity researchers have shed light on a Linux variant of a relatively new ransomware strain called Helldown, suggesting that the threat actors are broadening their attack focus. "Helldown deploys Windows ransomware derived from the LockBit 3.0 code," Sekoia said in a report shared with The...

North Korean IT Workers in Western Firms Now Demanding Ransom for Stolen Data

North Korean information technology IT workers who obtain employment under false identities in Western companies are not only stealing intellectual property, but are also stepping up by demanding ransoms in order to not leak it, marking a new twist to their financially motivated attacks. "In some...

Fake North Korean IT Workers Infiltrate Western Firms, Demand Ransom

North Korean hackers are infiltrating Western companies using fraudulent IT workers to steal sensitive data and extort ransom.…...

Lamborghini Carjackers Lured by $243M Cyberheist

The parents of a 19-year-old Connecticut honors student accused of taking part in a $243 million cryptocurrency heist in August were carjacked a week later -- while out house-hunting in a brand new Lamborghini. Prosecutors say the couple was beaten and briefly kidnapped by six young men who...

Hacktivist Group Twelve Targets Russian Entities with Destructive Cyber Attacks

A hacktivist group known as Twelve has been observed using an arsenal of publicly available tools to conduct destructive cyber attacks against Russian targets. "Rather than demand a ransom for decrypting data, Twelve prefers to encrypt victims' data and then destroy their infrastructure with a...

IT threat evolution in Q2 2024. Non-mobile statistics

The statistics presented here are based on detection verdicts by Kaspersky products and services received from users who consented to providing statistical data. Quarterly figures In Q2 2024: Kaspersky solutions blocked over 664 million attacks from various internet sources. The web antivirus...

Ex-Engineer Charged in Missouri for Failed $750,000 Bitcoin Extortion Attempt

A 57-year-old man from the U.S. state of Missouri has been arrested in connection with a failed data extortion campaign that targeted his former employer. Daniel Rhyne of Kansas City, Missouri, has been charged with one count of extortion in relation to a threat to cause damage to a protected...