The Gentlemen ransomware: Dissecting a self-propagating Go encryptor

In this article 1. Pre-encryption 2. File encryption 3. Post-encryption 4. Defending against The Gentlemen ransomware 5. Microsoft Defender detections and hunting guidance 6. Indicators of compromise Ransomware that combines robust encryption with rapid lateral movement significantly increases th...

Grafana GitHub Token Breach Led to Codebase Download and Extortion Attempt

Grafana has disclosed that an "unauthorized party" obtained a token that granted them the ability to access the company's GitHub environment and download its codebase. "Our investigation has determined that no customer data or personal information was accessed during this incident, and we have...

Stolen Canvas data was “returned” after hacker agreement, Instructure says

The Instructure/Canvas data breach that has dominated cybersecurity coverage recently has reached a new stage. Millions of students had personal data stolen, with extortion group ShinyHunters claiming credit for the data breach and applying extra pressure for their ransom demands by bothering...

State of ransomware in 2026

With International Anti-Ransomware Day taking place on May 12, Kaspersky presents its annual report on the evolving global and regional ransomware cyberthreat landscape. Ransomware remains one of the most persistent and adaptive cyberthreats. In 2026: New families continue to emerge, adopting...

ShinyHunters escalates Canvas attacks with school login defacements

Days after confirming a major data breach, Instructure is now facing a second blow. Earlier this week, Instructure confirmed a major data breach affecting its cloud‑hosted Canvas environment, with the ShinyHunters group claiming it stole hundreds of millions of records tied to thousands of school...

2026: The Year of AI-Assisted Attacks

On December 4, 2025, a 17-year-old was arrested in Osaka under Japan’s Unauthorized Access Prohibition Act. The young man had run malicious code to extract the personal data of over 7 million users of Kaikatsu Club, Japan's largest internet cafe chain. When asked, the young man shared his...

Cybercrime Groups Using Vishing and SSO Abuse in Rapid SaaS Extortion Attacks

Cybersecurity researchers are warning of two cybercrime groups that are carrying out "rapid, high-impact attacks" operating almost within the confines of SaaS environments, while leaving minimal traces of their actions. The clusters, Cordial Spider aka BlackFile, CL-CRI-1116, O-UNC-045, and UNC66...

Two Cybersecurity Professionals Get 4-Year Sentences in BlackCat Ransomware Attacks

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. Ryan Goldberg , 40, of Georgia, and Kevin Martin , 36, of Texas, were accused of deploying th...

Kraken Exchange Faces Extortion After Insider Recorded System Footage

Kraken exchange faces extortion after a staff member misused access to record internal systems, about 2,000 accounts affected, no funds or systems breached...

Bearlyfy Hits Russian Firms with Custom GenieLocker Ransomware

A pro-Ukrainian group called Bearlyfy has been attributed to more than 70 cyber attacks targeting Russian companies since it first surfaced in the threat landscape in January 2025, with recent attacks leveraging a custom Windows ransomware strain codenamed GenieLocker. "Bearlyfy also known as...

Dark Web Roast February 2026 Edition

Dark Web Roast - February 2026 Edition By Trellix Advanced Research Center · March 18, 2026 Executive Summary February 2026 delivered another stellar month in the ongoing theatre of the absurd that is the cybercriminal underground, where ransomware gangs bulk-scheduled their extortion like a...

TeamPCP Worm Exploits Cloud Infrastructure to Build Criminal Infrastructure

Cybersecurity researchers have called attention to a "massive campaign" that has systematically targeted cloud native environments to set up malicious infrastructure for follow-on exploitation. The activity, observed around December 25, 2025, and described as "worm-driven," leveraged exposed Dock...

Please Don’t Feed the Scattered Lapsus ShinyHunters

A prolific data ransom gang that calls itself Scattered Lapsus ShinyHunters SLSH has a distinctive playbook when it seeks to extort payment from victim firms: Harassing, threatening and even swatting executives and their families, all while notifying journalists and regulators about the extent of...

Mandiant Finds ShinyHunters-Style Vishing Attacks Stealing MFA to Breach SaaS Platforms

Google-owned Mandiant on Friday said it identified an "expansion in threat activity" that uses tradecraft consistent with extortion-themed attacks orchestrated by a financially motivated hacking group known as ShinyHunters. The attacks leverage advanced voice phishing aka vishing and bogus...

Predicting 2026

Welcome to this week's edition of the Threat Source newsletter. It's become traditional at this time of year to make predictions about cybersecurity for the coming year. Obviously, no one has a crystal ball to predict the future, and if they did, they would be quietly making a fortune rather than...

One million customers on alert as extortion group claims massive Brightspeed data haul

US fiber broadband company Brightspeed is investigating claims by the Crimson Collective extortion group that it stole sensitive data belonging to more than 1 million residential customers, including extensive personally identifiable information PII, as well as account and billing details...

How AI made scams more convincing in 2025

This blog is part of a series where we highlight new or fast-evolving threats in consumer security. This one focuses on howAI is being used to design more realistic campaigns, accelerate social engineering, and how AI agents can be used to target individuals. Most cybercriminals stick with what...

2 US Cybersecurity Experts Guilty of Extortion Scheme for ALPHV Ransomware

Can you trust your cybersecurity team? A recent federal case reveals how two US-based cybersecurity experts turned into affiliates for the BlackCat ransomware group, extorting over $1.2M in Bitcoin. Read the full story on their 2023 crime spree...

Trend Micro's Pivotal Role in INTERPOL's Operation Sentinel: Dismantling Digital Extortion Networks Across Africa

Continuing a Legacy of Successful Collaboration...

Ukrainian National Pleads Guilty in Nefilim Ransomware Conspiracy

Ukrainian man pleads guilty in United States to deploying Nefilim ransomware in global extortion scheme targeting companies across multiple countries...