Defense Department — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
4
occurrences
First Seen
January 27, 2026
Last Seen
April 1, 2026

Defense Department is a organization tracked across 3 threat clusters and 4 intelligence report mentions on ThreatCluster. First observed January 27, 2026; most recent activity April 1, 2026.

Related Threat Clusters

  • Claude Code Source Code Leaked via npm Packaging Error

    On March 31, 2026, Anthropic inadvertently exposed the entire source code of its AI tool, Claude Code, by including a 59.8 MB source map file in a public npm package. This leak, caused by human error, allowed access to…

    32 articles · Updated March 31, 2026
  • Treasury Cancels Contracts with Booz Allen Over Trump Tax Records Leak

    The U.S. Treasury Department has canceled all contracts with Booz Allen Hamilton after an employee leaked tax records of President Donald Trump and billionaires Jeff Bezos and Elon Musk. The cancellation affects 31…

    2 articles · Updated January 27, 2026
  • Chinese Hackers Exploit Vulnerability in Ivanti VPN Software

    In early 2024, the US government issued an emergency order for all civilian federal agencies to disconnect the Connect Secure VPN software made by Ivanti Inc. due to a breach by Chinese hackers. The hackers infiltrated…

    7 articles · Updated February 19, 2026

Recent Intelligence Reports

  • Claude Code source leak reveals how much info Anthropic can hoover up about you and your system — Theregister · April 1, 2026
  • Private Equity Debt Left a Leading VPN Open to Chinese Hackers — News.Bloomberglaw · February 19, 2026
  • How Private Equity Debt Left a Leading VPN Open to Chinese Hackers — Bloomberg · February 19, 2026
  • Treasury cuts ties with Booz Allen over tax records breach — Federalnewsnetwork · January 27, 2026

CVSS v3.1 Breakdown