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Matt Johansen's free weekly newsletter for security enthusiasts.

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๐ŸŽ“๏ธ Vulnerable U | #184
Sep 04, 2026

๐ŸŽ“๏ธ Vulnerable U | #184

Massive drivers license data breach, McKesson breached by ShinyHunters, TeamPCP OSINT investigation, and much more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #183
Aug 28, 2026

๐ŸŽ“๏ธ Vulnerable U | #183

OpenAI detailed Hugging Face report, GTA 6 leaks, Omarchy 0days, TeamPCP arrests, and much more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #182
Aug 21, 2026

๐ŸŽ“๏ธ Vulnerable U | #182

Rust supply chain attack, Big crypto stealing browser extension campaign, AI is critical Infrastructure now, and much more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #181
Aug 14, 2026

๐ŸŽ“๏ธ Vulnerable U | #181

Delta WiFi Hack from DEFCON, Defendant hides AI prompt in court documents, Whitehouse enables privateering hackers, and more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #180
Aug 07, 2026

๐ŸŽ“๏ธ Vulnerable U | #180

Rogue AI hackers follow ups, Blackhat and DEFCON research dropping, Water plants not pulling PLCs off the internet fast enough, and much more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #179
Jul 31, 2026

๐ŸŽ“๏ธ Vulnerable U | #179

More AIs escaping labs, FCC cracks down on foreign hardware, Amazon selling pre-hacked streaming sticks, and more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #178
Jul 24, 2026

๐ŸŽ“๏ธ Vulnerable U | #178

AI escaped the lab, Jim Cramer calls Chinese models a huge risk, and an absolute ton of vulns in active exploitation you need to know about

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #177
Jul 17, 2026

๐ŸŽ“๏ธ Vulnerable U | #177

Record breaking patch tuesday, AI 0days, Hacker perp walks, job interviews that get you hacked, and much more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #176
Jul 10, 2026

๐ŸŽ“๏ธ Vulnerable U | #176

Microsoft ID used to track hackers in court case, Vidar infostealer intel breakdown, Zero days to watch out for, and much more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #175
Jul 03, 2026

๐ŸŽ“๏ธ Vulnerable U | #175

Free Fable! Fortibleed updates, New Citrix and Oracle active attacks, and much more!

Matt Johansen
Matt Johansen
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #174
Jun 26, 2026

๐ŸŽ“๏ธ 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
NewsletterNewsletter
๐ŸŽ“๏ธ Vulnerable U | #173
Jun 19, 2026

๐ŸŽ“๏ธ 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
Infosec's favorite weekly newsletter for news, tools, and tips with 38,000+ CISOs, founders, change-makers, and straight up hackers.

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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