Newsletter

Matt Johansen's free weekly newsletter for security enthusiasts.

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🎓️ Vulnerable U | #168

🎓️ Vulnerable U | #168

So many more supply chain worms, so many more linux 0days, some android 0days as a treat, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #167

🎓️ Vulnerable U | #167

Massive education software hacked - Canvas ransomware, AI layoffs, Zero days in edge devices, Iran pretending to be cybercrime group, and more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #166

🎓️ Vulnerable U | #166

GitHub RCE, Widespread vulnerability in most Linux distros gives users root, Robinhood with a very clever phishing attack, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #165

🎓️ Vulnerable U | #165

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

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #164

🎓️ 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
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🎓️ Vulnerable U | #163

🎓️ Vulnerable U | #163

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

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #162

🎓️ Vulnerable U | #162

Supply chain pandoras box, claude source code leak, $280M in crypto stolen, Railway was serving up other user's data, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #161

🎓️ Vulnerable U | #161

Trivy and LiteLLM nightmare from TeamPCP hacking GitHub workflows, Hong Kong privacy issues, FCC bans foreign routers, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #160

🎓️ Vulnerable U | #160

Meta funding the age verification war and reversing e2e encryption promises, stryker wiped by Iran, Telus gets hacked and loses a petabyte of data, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #159

🎓️ Vulnerable U | #159

Iran cyberwar in full swing as they retaliate, Claude hacked websites without permission, iOS exploit kit in the wild tied to USA gov contractors, and more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #158

🎓️ Vulnerable U | #158

Iran conflict includes a TON of cyber tactics and implications, AI in browsers is fraught with security issues, FBI got hacked, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #157

🎓️ Vulnerable U | #157

Anthropic goes toe to toe with the pentagon while getting attacked by China, Google API keys have a bad day, Apple joins the age verification debate, and much more!

Matt Johansen
Matt Johansen