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Matt Johansen's free weekly newsletter for security enthusiasts.

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🎓️ Vulnerable U | #145
Dec 05, 2025

🎓️ 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
Nov 21, 2025

🎓️ 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
Nov 14, 2025

🎓️ 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
Nov 07, 2025

🎓️ 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
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🎓️ Vulnerable U | #140
Oct 31, 2025

🎓️ Vulnerable U | #140

Hacked critical infrastructure across US and Canada, Russia living off the land against Ukraine, Major telecom backbone provider hacked, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #139
Oct 24, 2025

🎓️ Vulnerable U | #139

Exploit dev boss selling secrets to Russia, YouTube malware network takedown, Dissection of massive sms phishing operation, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #138
Oct 17, 2025

🎓️ Vulnerable U | #138

f5 debacle is absolutely bananas, spying on unencrypted satellite comms, cisco, ivanti, and fortinet also all having a bad week full of 0days, CISA is gutted and facing pressure, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #137
Oct 10, 2025

🎓️ Vulnerable U | #137

Oracle is the new MOVEit thanks to Cl0p, Redis vuln a perfect CVSS 10, Google DeepMind puts out AI agent that finds and fixes vulns, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #136
Oct 03, 2025

🎓️ Vulnerable U | #136

Red Hat massive GitLab leak, Government Shutdown impacting Cyber, Hacking Google Gemini, Clop ransomware returns! and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #135
Sep 26, 2025

🎓️ Vulnerable U | #135

Massive Cisco 0-day actively exploited, AI vs AI in our email boxes, SIM Farm taken down by Secret Service, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #134
Sep 19, 2025

🎓️ Vulnerable U | #134

Massive Microsoft Entra vulnerability with no logs, big phishing as a service takedown, North Korean usage of ChatGPT on display, npm worm, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #133
Sep 12, 2025

🎓️ Vulnerable U | #133

Apple massively upgrades security of iPhone 17, Huntress gets a view behind the scenes on a threat actor's computer, npm massive hack details, Salesloft keeps on giving, and much more!

Matt Johansen
Matt Johansen
Infosec's favorite weekly newsletter for news, tools, and tips with 32,000+ CISOs, founders, change-makers, and straight up hackers.

Vulnerable U

Infosec's favorite weekly newsletter for news, tools, and tips with 32,000+ CISOs, founders, change-makers, and straight up hackers.

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