Stolen credentials can enable account takeover and lateral movement; phishing-resistant MFA, password managers, and rapid revocation reduce the risk.
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Background for this topic.
Credentials are the data used to verify a user's identity to a system, commonly including usernames, passwords, security tokens, or biometric identifiers. They serve as gatekeepers for access to accounts, applications, and sensitive information. Attackers target credentials to impersonate users, escalate privileges, or gain unauthorized system access.
Compromise of credentials can occur through phishing, credential stuffing, or theft from insecure storage. Effective defenses include enforcing strong, unique passwords, implementing multi-factor authentication (MFA), and securely storing credentials using hashing or encryption. Monitoring for unusual login patterns and promptly revoking compromised credentials are also critical to limit attacker impact.
Data exfiltration was the most common malware in Sonatype report, with more than 4,400 packages designed to steal secrets, personally identifiable information, credentials, and API tokens.
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Hackers stole nearly $140 million from six banks in Brazil by using an employee's credentials from C&M, a company that offers financial connectivity solutions. [...]
Cybersecurity researchers have observed a 156% increase in credential theft incidents between 2024 and Q1 2025