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:
- Europol, Microsoft, TrendAI and Collaborators Halt Tycoon 2FA Operations
March 4, 2026
Researchers from TrendAI have been tracking the infrastructure, as well as the campaigns and operator behaviors that can be linked to Tycoon 2FA to build a clearer picture of how its services was being used at scale. By November 2025, TrendAI had collected enough data to link the operation to an actor using the monikers “SaaadFridi” ...
- Google patches 129 Android security flaws — including a potentially dangerous Qualcomm zero-day
March 3, 2026
Google has released a new security update which fixed 129 vulnerabilities in the Android ecosystem, including 10 critical-severity bugs, and one high-severity issue apparently being exploited in the wild. In a security advisory, Google said that it fixed a buffer over-read vulnerability in the Graphics component (an open-source Qualcomm module). The bug, tracked as CVE-2026-21385, was ...
- Coruna: The Mysterious Journey of a Powerful iOS Exploit Kit
March 3, 2026
Google Threat Intelligence Group (GTIG) has identified a new and powerful exploit kit targeting Apple iPhone models running iOS version 13.0 (released in September 2019) up to version 17.2.1 (released in December 2023). The exploit kit, named “Coruna” by its developers, contained five full iOS exploit chains and a total of 23 exploits. The core technical ...
- Microsoft OAuth scams abuse redirects for malware delivery
March 3, 2026
Microsoft has warned organizations about ongoing OAuth abuse scams that use phishing emails and URL redirects to infect victims’ machines with malware and take over their devices. The phishing expedition targets government and public-sector organizations, according to a Monday report from Redmond’s security researchers. And while Microsoft Entra disabled the malicious OAuth applications, Microsoft’s infosec squad ...
- Hacktivists may have just cracked open ICE and exposed over 6,000 companies working with the DHS
March 3, 2026
A hacktivist group has claimed to have broken into systems belonging to the US Department of Homeland Security (DHS) and exposed sensitive files online. The group, with the self-awarded name “The Department of Peace”, stole data from the Office of Industry Partnership that contained contracts between DHS, Immigration and Customs Enforcement (ICE), and over 6,000 private ...
- Hacked traffic cams and hijacked TVs: How cyber operations supported the war against Iran
March 3, 2026
On Saturday, U.S. and Israeli jets began a bombing campaign against Iran, killing its supreme leader Ali Khamenei and several senior government officials. The attacks also hit military and civilian targets all across the country, including a girls’ school, where at least 168 children and adults were killed. After a few days of conflict, multiple reports, ...