Locking Down Linux: Harden Sudo Passwords to Defend Against Hashcat Attacks

Hacker's are always looking for new ways to exploit systems and exfiltrate passwords, even in hashed form. Sophisticated brute-force attacks powered by high-end GPUs can perform millions of password attempts per second. But Ubuntu and Debian users aren't completely helpless. There are ways to harden the hashed password to better defend against Hashcat attacks. Why Would an Attacker Steal My Sudo Password? Root privileges are usually required to access the /etc/shadow file in Ubuntu and Debian systems where hashed passwords are stored. An attacker extracting this data would suggest they... more