In late March 2026open on a new tab, Anthropic inadvertently released the internal Claude Code source material as part of an npm package that included a large internal source map file. Although the incident stemmed from a simple packaging mistake, threat actors were quick to capitalize on the resulting attention. Only 24 hours after the leak, they were able to create fake GitHub repositories to distribute credential-stealing malware disguised as “leaked” Claude Code downloads.
This incident demonstrates that security compromise is not limited to software vulnerabilities: human factors and organizational control gaps often serve as catalyst for threats and are primary drivers of material impact. In this blog entry, we will talk about our analysis of the threats capitalizing on this incident, the downstream risks of the leaked source code, and the actions organizations should take next.
Read more…
Source: Trend Micro
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- FBI: Increase in malware enabled ATM jackpotting incidents across United States
February 19, 2026
The Federal Bureau of Investigation (FBI) is releasing this FLASH to disseminate indicators of compromise (IOCs) and technical details associated with malware enabled ATM jackpotting. Threat actors exploit physical and software vulnerabilities in ATMs and deploy malware to dispense cash without a legitimate transaction. The FBI has observed an increase in ATM jackpotting incidents across the ...
- AI-generated passwords are a security risk
February 19, 2026
Using Artificial Intelligence (AI) to generate your passwords is a bad idea. It’s likely to give that password to a criminal who can then use it in a dictionary attack—which is when an attacker runs through a prepared list of likely passwords (words, phrases, patterns) with automated tools until one of them works, instead of ...
- Arkanix Stealer: C++ and Python infostealer
February 19, 2026
In October 2025, Kaspersky researchers discovered a series of forum posts advertising a previously unknown stealer, dubbed “Arkanix Stealer” by its authors. It operated under a MaaS (malware-as-a-service) model, providing users not only with the implant but also with access to a control panel featuring configurable payloads and statistics. The set of implants included a publicly ...
- Chinese hack exposes data of 5,000 Italian counterterrorism officers
February 18, 2026
Personal data of roughly 5,000 Italian Digos officers — including names, roles and postings — was reportedly obtained by hackers linked to China after a cyber intrusion into the Interior Ministry’s network between 2024 and 2025. The breach potentially exposes officers involved in counterterrorism and monitoring Chinese dissidents, raising serious national security concerns and complicating Italy’s ...
- Data breach at fintech giant Figure affects close to a million customers
February 18, 2026
The data breach that hit blockchain-based lending giant Figure affected nearly a million customers, according to a security researcher. Last week, Figure confirmed a data breach allowed hackers to steal “a limited number of files” from its systems. The company did not provide specifics on what kind of data was stolen nor say how many customers ...
- CVE-2026-2329: Critical Unauthenticated Stack Buffer Overflow in Grandstream GXP1600 VoIP Phones (FIXED)
February 18, 2026
Rapid7 Labs conducted a zero-day research project against the Grandstream GXP1600 series of Voice over Internet Protocol (VoIP) phones. This research resulted in the discovery of a critical unauthenticated stack-based buffer overflow vulnerability, CVE-2026-2329. A remote attacker can leverage CVE-2026-2329 to achieve unauthenticated remote code execution (RCE) with root privileges on a target device. A vendor ...