Copilotfree, in-browser
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
A bug turns into a vulnerability the moment untrusted data reaches a dangerous sink.
Why Code Becomes Vulnerable
A bug turns into a vulnerability the moment untrusted data reaches a dangerous sink.
Input Validation and Output Encoding
Validate on the way in, encode on the way out, and injection mostly dies.
Managing Secrets
Commit one API key and a bot has it before your CI finishes.
Dependencies and Supply Chain
Most of your attack surface is code you never wrote.
Security Code Review
Stop reading top to bottom. Hunt sinks and trace backward.