تدوينات Defensive

How to find SUID files on Linux with find, read the results, and decide which SUID programs are dangerous and should be removed.

Recover MinIO data from raw drives without a server: decode xl.meta, rebuild erasure-coded shards, use parity for lost drives and find deleted versions.

Learn how to check email headers for phishing. View full headers in Outlook, Gmail and Apple Mail, read the Received chain and understand SPF, DKIM and DMARC results.

What is the CIA triad? Confidentiality, integrity and availability explained, with a real attack on each and commands to check them on your own systems.

What Windows Event ID 4625 means, how to read its status codes and logon types, and how to tell a mistyped password from a brute-force or password spraying attack.