Newsletter

Matt Johansen's free weekly newsletter for security enthusiasts.

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🎓️ Vulnerable U | #139

🎓️ 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

🎓️ 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

🎓️ 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

🎓️ 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

🎓️ 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

🎓️ 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

🎓️ 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
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🎓️ Vulnerable U | #132

🎓️ Vulnerable U | #132

Salesloft Salesforce mega breach, The craziest AI hacking technique I've seen, WhatsApp Spyware, Streameast takedown, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #131

🎓️ Vulnerable U | #131

Letter from Wyden to the Supreme Court calling it's cybersecurity incompetent, Google Threat Intel drops lots of info on China and Salesforce breach, CISA releases the playbook to combat Salt Typhoon, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #130

🎓️ Vulnerable U | #130

Scattered spider, ShinyHunters, Lapsus joining forces. Some of them getting arrested, their Telegram chats getting popped. Apple patches 0-day under active exploitation and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #129

🎓️ Vulnerable U | #129

So. Much. Blackhat/DEFCON research. Prompt injections, CyberArk and HashiCorp Vault zero days, DEFCON volunteers helping rural water utilities, and much more!

Matt Johansen
Matt Johansen
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🎓️ Vulnerable U | #128

🎓️ Vulnerable U | #128

Tons of blackhat research coming out, Microsoft Exchange major vulnerability, DaVita data breach, Federal court filing system breach, and much more!

Matt Johansen
Matt Johansen