In today’s digital landscape, the proliferation of online accounts has made password management a critical challenge for individuals and organizations. Weak passwords, password reuse, and insecure storage practices contribute significantly to data breaches and cybersecurity threats. A Password Managing System (PMS) offers a robust solution by securely storing, encrypting, and auto-filling credentials while mitigating risks associated with human error.

This paper provides a comprehensive analysis of modern password managers, focusing on their encryption mechanisms, security architectures, usability factors, and vulnerabilities. We examine symmetric and asymmetric encryption algorithms, including AES-256, RSA-4096, and ChaCha20, along with key derivation functions (PBKDF2, Argon2, and bcrypt). Additionally, we evaluate zero-knowledge security models, multi-factor authentication (MFA), and biometric integration in password management systems.

Our research includes a comparative study of leading password managers (LastPass, Bitwarden, 1Password, and KeePass), analyzing their encryption standards, cloud synchronization, and vulnerability histories. We also present empirical data on password strength trends, user adoption rates, and attack vectors such as phishing, keylogging, and brute-force attacks.