At its heart, passwords remain a standard authentication method, yet contemporary manual password generation methods maintain weak passwords—an ongoing challenge in cybersecurity. A password-cracking attack is just a guessing attack. An attacker makes guesses about a user’s password until they guess correctly or give up. While the defender may limit the number of guesses an attacker is allowed, a password’s strength often depends on how hard it is for an attacker to model and reproduce how a user created their password. The essential objective of this project is to investigate and evaluate the different password-cracking strategies, procedures, and approaches by carefully considering the vulnerabilities that lead to compelling password-cracking abuses. This paper is interested in discovering techniques for protecting against password-cracking and enhancing information protection by offering information about statistics rules of attacks, dissecting their strategies, and recommending realistic countermeasures; our tool will focus on preventing and detecting password-cracking techniques on Mission Critical Systems (MCS) that are complex systems often used in military and other high-risk activities where mission completion is critical.