We Just Released 240 Free Cybersecurity Exercises
For the past several months, we’ve been building something that didn’t exist in the format we wanted.
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Security News & Insights
Research, guides, and expert advice.
Vervain: A Chrome Extension That Uses AI to Catch Phishing Emails in Gmail
Phishing emails used to give themselves away. Bad grammar, sketchy domains, generic greetings – these were reliable red flags for years. That era is ending....
Read More →When you feel PUSHED, stop and VERIFY before you reply
Phishing isn’t just emails anymore. Today’s attackers use AI-generated phone calls, deepfake videos, sophisticated text messages, and perfectly crafted emails. The technology behind these attacks...
Read More →Indicator Removal in the Wild: A Practitioner's Guide to Detection and Response
After gaining access to a target system, sophisticated adversaries don’t just accomplish their objectives and leave. They systematically remove traces of their presence, making incident...
Read More →Widespread npm Supply Chain Attack: The Shai-Hulud Worm
On 23 September 2025, CISA disclosed that the “Shai-Hulud” worm had taken over more than 500 npm packages—roughly 2.9 billion weekly downloads—within a 94‑minute window. The...
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