Overview: Credential Exposure

Quick Definition

Credential exposure occurs when user authentication information like passwords, API keys, or tokens becomes accessible to unauthorized parties. This can happen through various means including data breaches, insecure storage practices, accidental publication in code repositories, phishing attacks, or malware infections that harvest stored credentials.

Common forms include plaintext passwords in configuration files, hardcoded API keys in source code, credentials transmitted over unencrypted channels, or login information stored in unsecured databases. Social engineering attacks may also trick users into voluntarily disclosing their credentials to attackers posing as legitimate entities.

The consequences of credential exposure can be severe, potentially leading to unauthorized account access, data theft, financial fraud, or complete system compromise. Attackers often use exposed credentials for lateral movement within networks or to gain persistent access to systems.

Prevention strategies include implementing strong password policies, using multi-factor authentication, encrypting stored credentials, regularly rotating passwords and API keys, conducting security awareness training, and employing credential scanning tools to detect exposed authentication data in code repositories and other locations.