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Vercel Says Some of its Customers’ Data Was Stolen Prior to Recent Hack

Apr 27, 2026

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2 min read

Vercel Says Some of its Customers’ Data Was Stolen Prior to Recent Hack

Matt Johansen
Matt Johansen

Newsletter

🎓️ Vulnerable U | #165

Apr 24, 2026

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8 min read

🎓️ Vulnerable U | #165

Vercel breach, Lovable incident, and more supply chain hacks than we know what to do with!

Matt Johansen
Matt Johansen

Newsletter

🎓️ Vulnerable U | #164

Apr 17, 2026

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8 min read

🎓️ Vulnerable U | #164

Claude Mythos! What do we need to know? Adobe, Microsoft and wolfSSL 0 days, major crypto breaches, and much more!

Matt Johansen
Matt Johansen
Mythos and Glasswing: Did Anthropic Break the Internet?

Apr 15, 2026

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6 min read

Mythos and Glasswing: Did Anthropic Break the Internet?

Matt Johansen
Matt Johansen
Fortinet Customers Confront Actively Exploited Zero-Day, With a Full Patch Still Pending

Apr 14, 2026

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2 min read

Fortinet Customers Confront Actively Exploited Zero-Day, With a Full Patch Still Pending

Matt Johansen
Matt Johansen
Unpacking The  2025 FBI IC3 Annual Report

Apr 14, 2026

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7 min read

Unpacking The 2025 FBI IC3 Annual Report

Matt Johansen
Matt Johansen
The $280M Drift Heist: Six Months of Trust, 12 Minutes to Drain It

Apr 13, 2026

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7 min read

The $280M Drift Heist: Six Months of Trust, 12 Minutes to Drain It

Matt Johansen
Matt Johansen

Vulnerability

+1

How Command Injection Vulnerability in OpenAI Codex Leads to GitHub Token Compromise

Apr 10, 2026

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3 min read

How Command Injection Vulnerability in OpenAI Codex Leads to GitHub Token Compromise

Matt Johansen
Matt Johansen

Newsletter

🎓️ Vulnerable U | #163

Apr 10, 2026

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16 min read

🎓️ Vulnerable U | #163

Mythos Mega Threat, FBI Cybercrime 2025 stats, Massive crypto heist of over $280 Million, and much more!

Matt Johansen
Matt Johansen

News

Railway Incident: Authenticated User Data Cached

Apr 9, 2026

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4 min read

Railway Incident: Authenticated User Data Cached

Matt Johansen
Matt Johansen

AI

+1

Claude Code's Full Source Code Leaked Via .map File in Anthropic's npm Registry

Apr 7, 2026

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5 min read

Claude Code's Full Source Code Leaked Via .map File in Anthropic's npm Registry

Matt Johansen
Matt Johansen

News

+1

Palo Alto Networks' "Tomorrow, Secured" Recap: What Actually Matters for Practitioners

Apr 6, 2026

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6 min read

Palo Alto Networks' "Tomorrow, Secured" Recap: What Actually Matters for Practitioners

Matt Johansen
Matt Johansen
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Vulnerable U

Vulnerable U

Infosec's favorite weekly newsletter for news, tools, and tips with 38,000+ CISOs, founders, change-makers, and straight up hackers.


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