Recent Posts

Compare IntelliJ IDEA Community, Eclipse, and VS Code for learning Java, then test your JDK, debugger, and project setup with a small exercise.

Diagnose failed security lab exercises by checking the setup, locating the first failing boundary, making reversible changes, and confirming the fix.

Learn how 2FA protects accounts, compare authenticator apps, security keys, push prompts, and SMS, and set up recovery without locking yourself out.

Keep Git changes reviewable and sensitive data out of history with practical habits for branches, commits, reviews, releases, and recovery.

Practical steps for reviewing contributions, limiting CI access, checking dependencies, and publishing traceable open source releases.

Learn what packet captures can show, how to follow a connection in Wireshark, and why observation points and missing packets matter.

Learn how parameterized queries prevent SQL injection, where placeholders cannot be used, and how to review and test database code safely.

Learn how to scope cybersecurity requirements, assign control owners, collect useful evidence, and track gaps without mistaking an audit for a security guarantee.

Learn how to protect API endpoints with resource-level authorization, input and output controls, safe logging, rate limits, and tests for denied access.

Learn how passwords, sessions, bearer tokens, MFA, passkeys, and federated sign-in work, plus what to check when choosing and testing authentication.