Hertz Confirms Data Breach After Hackers Stole Customer PII

Hertz confirms data breach linked to Cleo software flaw; Cl0p ransomware group leaked stolen data, exposing names, driver’s…...

CrazyHunter Campaign Targets Taiwanese Critical Sectors

This blog entry details research on emerging ransomware group CrazyHunter, which has launched a sophisticated campaign aimed at Taiwan's essential services...

Hertz data breach caused by CL0P ransomware attack on vendor

The Hertz Corporation, on behalf of Hertz, Dollar, and Thrifty brands, is sending breach notifications to customers who may have had their name, contact information, driver's license, and—in rare cases—Social Security Number exposed in a data breach. The car rental giant’s data was stolen in a...

Year in Review: The biggest trends in ransomware

This week, our Year in Review spotlight is on ransomware --where low-profile tactics led to high-impact consequences. Ransomware operators often prioritized stealth over complexity for initial access. They also focused on slipping past defenses with minimal noise--uninstalling security tools,...

From Cyber Threat to Data Shield: Constructing Provably Secure File Erasure with Repurposed Ransomware Cryptography

Ransomware has emerged as a persistent cybersecurity threat,leveraging robust encryption schemes that often remain unbroken even after public disclosure of source code. Motivated by the technical resilience of such mechanisms, this paper presents SEER Secure and Efficient Encryption-based Erasure...

Take Command 2025: A Day of Insight, Innovation, and Impact

Take Command 2025 is officially in the books. From the opening sessions to the final takeaways, the summit delivered a full day of high-impact discussions, fresh research, and powerful stories from across the cybersecurity spectrum. This year’s event brought together cybersecurity leaders,...

⚡ Weekly Recap: Windows 0-Day, VPN Exploits, Weaponized AI, Hijacked Antivirus and More

Attackers aren't waiting for patches anymore — they are breaking in before defenses are ready. Trusted security tools are being hijacked to deliver malware. Even after a breach is detected and patched, some attackers stay hidden. This week's events show a hard truth: it's not enough to react afte...

Black Basta: The Fallen Ransomware Gang That Lives On

After a series of setbacks, the notorious Black Basta ransomware gang went underground. Researchers are bracing for its probable return in a new form...

Initial Access Brokers Shift Tactics, Selling More for Less

What are IABs? Initial Access Brokers IABs specialize in gaining unauthorized entry into computer systems and networks, then selling that access to other cybercriminals. This division of labor allows IABs to concentrate on their core expertise: exploiting vulnerabilities through methods like soci...

Smokeloader Users Identified and Arrested in Operation Endgame

Authorities arrest 5 Smokeloader botnet customers after Operation Endgame; evidence from seized data links customers to malware, ransomware, and more...

How cyberattackers exploit domain controllers using ransomware

In recent years, human-operated cyberattacks have undergone a dramatic transformation. These attacks, once characterized by sporadic and opportunistic attacks, have evolved into highly sophisticated, targeted campaigns aimed at causing maximum damage to organizations, with the average cost of a...

PipeMagic Trojan Exploits Windows Zero-Day Vulnerability to Deploy Ransomware

Microsoft has revealed that a now-patched security flaw impacting the Windows Common Log File System CLFS was exploited as a zero-day in ransomware attacks aimed at a small number of targets. "The targets include organizations in the information technology IT and real estate sectors of the United...

Medusa Ransomware Claims NASCAR Breach in Latest Attack

Medusa ransomware hits NASCAR, demands $4M ransom, leaks internal files. Group also claims Bridgebank, McFarland, and Pulse Urgent Care...

Exploitation of CLFS zero-day leads to ransomware activity

Microsoft Threat Intelligence Center MSTIC and Microsoft Security Response Center MSRC have discovered post-compromise exploitation of a zero-day elevation of privilege vulnerability in the Windows Common Log File System CLFS against a small number of targets. The targets include organizations in...

2025 Ransomware: Business as Usual, Business is Booming

Getting an edge on your adversaries involves understanding their behaviors and their mindset. Rapid7 Labs took a look at internal and publicly-available ransomware data for Q1 2025 and added our own insights to provide a picture of the year thus far—and what you can do now to reduce your attack...

2025 Ransomware: Business as Usual, Business is Booming

Getting an edge on your adversaries involves understanding their behaviors and their mindset. Rapid7 Labs took a look at internal and publicly-available ransomware data for Q1 2025 and added our own insights to provide a picture of the year thus far—and what you can do now to reduce your attack...

HellCat Ransomware Hits 4 Firms using Infostealer-Stolen Jira Credentials

HellCat ransomware hits 4 companies by exploiting Jira credentials stolen through infostealer malware, continuing their global attack spree...

Jasmin Ransomware - Arbitrary File Download (Authenticated)

Exploit Title: Jasmin Ransomware - Authenticated Arbitrary File Download Google Dork: N/A Date: 22-03-2025 Exploit Author: bRpsd cyatlive.no Vendor Homepage: https://github.com/codesiddhant/Jasmin-Ransomware Software Link: https://github.com/codesiddhant/Jasmin-Ransomware Version: N/A Tested on:...

Year in Review: In conversation with the report's authors

🎥 Talos Year in Review 2024: Part 1 & 2 - Watch Now! Another year, another mountain of malicious telemetry to sift through. I spoke with a few of Talos' Year in Review authors, freshly out of the sandbox, to discuss the how's and why's of our biggest findings. 👉 Part 1: The major theme of 2024, t...

Don’t Miss Out: What You Need to Know Before Take Command 2025

Take Command 2025 is just two days away, and there’s still time to secure your spot. Whether you’ve already registered or are building your agenda now, there’s plenty to look forward to — and it all starts this Wednesday, April 9. In the lead-up to the live summit, two new on-demand sessions are...