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Matt Johansen's free weekly newsletter for security enthusiasts.

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🎓️ Vulnerable U | #174

🎓️ Vulnerable U | #174

Fortibleed is a bigger nightmare than we thought, Scattered Spider members go to jail, LastPass has another breach this time via Salesforce, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #173

🎓️ Vulnerable U | #173

Free Mythos! Fortinet having massive security issues, FIFA has a near miss on massive security vulnerability in the World Cup streams, and much more!

Matt Johansen
Matt Johansen
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Vulnerable U | #172

Vulnerable U | #172

Mythos and Fable updates, AI agents falling for phishing emails, Iran hacked California water providers, ServiceNow breach, and more!

Matt Johansen
Matt Johansen
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Vulnerable U | #171

Vulnerable U | #171

Meta's AI disaster, Whitehouse executive order on AI security, more npm worms, and more publicly disclosed vulns from researchers

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #170

🎓️ Vulnerable U | #170

Microsoft kicked the hornets nest, Mythos be Mythosing, FBI warnings about in person social engineering, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #169

🎓️ Vulnerable U | #169

Github hack, npm madness, Cloudflare's experience with Mythos, CISA embarrassing data leak, and much more!

Matt Johansen
Matt Johansen
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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