Latest news as of 6/4/2026, 5:12:20 PM
The Hacker News
Over the past several weeks, the cybersecurity community has been reminded how quickly frontier and agentic AI in defense networks can challenge our assumptions. When Anthropic's Claude Mythos model was made available to a limited set of organizations as a technical preview, it was reported that an unauthorized group claimed that it had gained access within hours. The incident, if true, was
The Hacker News
Cisco has patched a bug in Unified Communications Manager that lets an unauthenticated attacker on the network write files to the box and, from there, climb to root. It is tracked as CVE-2026-20230, and proof-of-concept exploit code is already public. Cisco's PSIRT says it has not seen the flaw used in attacks yet. The PoC shortens that runway. The flaw is a server-side request forgery.
Bleeping Computer
The United Nations' World Food Programme (WFP), the world's largest humanitarian organization, revealed over the weekend that its self-registration application (SRA) for Palestine was breached. [...]
Bleeping Computer
A new supply-chain attack has infected 36 packages on the Node Package Manager (npm) index with infostealer malware called IronWorm. [...]
The Hacker News
A security researcher found a flaw in Anthropic's Claude Code GitHub Action that let an attacker take over vulnerable public repositories running it, with nothing more than a single opened GitHub issue. Because Anthropic's own action repo used the same workflow, a working attack could have pushed malicious code into the action itself and onto the projects downstream that pull it. RyotaK of GMO
The Hacker News
It got stupid again. The internet still feels held together with tape. Bad plugins, old bugs, fake tools, trusted apps doing shady things. Same mess, new wrapper. And now the weird stuff is normal. Forums go down and come back worse. Cheap hackers get better toys. AI starts breaking real systems. Great. Read the whole thing before it ruins your week anyway. Unauthenticated
Bleeping Computer
Threat actors are actively teaching newcomers how to find, exploit, and profit from vulnerable systems. Flare explores what a popular underground hacking tutorial reveals about modern attacker workflows. [...]
Bleeping Computer
On Wednesday, Microsoft fixed an issue that caused some Windows devices to install driver updates without notice despite policies configured to prevent auto-updates. [...]
Bleeping Computer
French and Spanish authorities took down an online marketplace selling fake identity documents to migrant smuggling rings operating within the European Union. [...]
The Hacker News
Cybersecurity researchers have shed light on a macOS malvertising campaign codenamed Operation FlutterBridge that spreads a new backdoor called FlutterShell. According to Palo Alto Networks Unit 42, the campaign is said to be the next stage of a previously reported activity cluster dubbed JSCoreRunner (aka FileRipple) in late August 2025. The cybercrime group behind the two attack chains is