A developer reverse-engineering Anthropic's Claude Code binary discovered on June 30, 2026, that the tool had been silently encoding hidden signals into its AI system prompts for at least three months ...
Microsoft Threat Intelligence is warning Windows users about a cryptocurrency clipper strain of malware transmitted via USB drives. The malware, which has been affecting users since February, steals ...
IntroductionOn May 14, 2026, the Zscaler ThreatLabz team identified unusually high activity associated with the threat actor SmartApeSG to deploy malware. During our examination, we discovered ...
From package to postinstall payload: Inside the Mastra npm supply chain compromise by Sapphire Sleet
A poisoned npm package infected 140+ projects with a hidden payload. This report highlights how to detect, hunt, and defend ...
Microsoft Threat Intelligence analyzed a cryptocurrency clipper campaign that combines clipboard theft, wallet replacement, ...
Fake Claude Code install sites are pushing malware that steals API keys, developer credentials, crypto wallets, and other sensitive data.
A fresh wave of phishing emails is exploiting a blind spot in enterprise email security tools — one that most organizations have not closed — by disguising executable JavaScript inside SVG image files ...
A widely active phishing-as-a-service (PhaaS) operation known as FlowerStorm has begun using a browser-based virtual machine to conceal credential theft code, marking what researchers say is an ...
Editor's take: Microsoft has increasingly turned Windows Update into a point of frustration for some users, all while cybercriminals continue to exploit weaknesses in the Windows platform to deploy ...
Anthropic just cannot keep a lid on its business. After details of a yet-to-be-announced model were revealed due to the company leaving unpublished drafts of documents and blog posts in a publicly ...
ThreatDown Uncovers First Cyber Attack Abusing Deno JavaScript Runtime for Fileless Malware Delivery
ThreatDown’s EDR team discovered a sophisticated, multi-stage attack chain during an active investigation; the first documented case of attackers abusing the Deno runtime as a malware execution ...
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