Newsletter

Matt Johansen's free weekly newsletter for security enthusiasts.

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🎓️ Vulnerable U | #153

🎓️ Vulnerable U | #153

Moltbot mania, Sandworm nearly knocks out Polish power grid, MongoDB ransom hacks and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #152

🎓️ Vulnerable U | #152

curl bug bounty ended over ai slop, LLM generating polymorphic malware client side in real time, Zendesk hijacked for massive spam storm, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #151

🎓️ Vulnerable U | #151

Moxie launches private AI chat, Iran Internet still dark amid crisis, US considering tapping private sector hackers for offense, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #150

🎓️ Vulnerable U | #150

China hacking Congressional staff, ICE tracking everyone's location without warrants via data broker info, ESXi exploits in the wild, Stalkerware producer pleads guilty, and more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #149

🎓️ Vulnerable U | #149

MongoBleed Christmas Present, Major crypto heist via malware that resulted from npm worm, React vuln still causing breaches, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #148

🎓️ Vulnerable U | #148

Amazon catching thousands of North Korean spies in recruiting pipeline, Microsoft kills RC4 ...finally, CISA leadership is a disaster, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #147

🎓️ Vulnerable U | #147

Children cancer patients scammed of donations, Mixpanel breach impacting more victims, Browser extensions spying on your AI chats, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #146

🎓️ Vulnerable U | #146

React and Next.js situation is bad, Malware delivered via ChatGPT and Grok, Fortinet, Ivanti, SAP, and Gogs 0-days, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #145

🎓️ Vulnerable U | #145

React and Next.js critical RCE zero day, Brickstorm malware found in VMWare, Korea crack down on IP camera spying, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #143

🎓️ Vulnerable U | #143

FCC rolls back security requirements on telecom industry, Cloudflare postmortem, Salesforce with a new supply chain hack, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #142

🎓️ Vulnerable U | #142

EU can't stop trying to spy on your chats, Congress hacked, Anthropic releases report about cyber attack that used Claude, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #141

🎓️ Vulnerable U | #141

Ransomvibing in extension marketplace, Google predictions from security in 2026, Russia targets Ukraine grain industry with cyber attack, and much more!

Matt Johansen
Matt Johansen