Stay secure online with the latest on authentication techniques, best practices, and industry updates at the forefront of information security.
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Background for this topic.
Authentication confirms the identity of users or systems before granting access to resources, typically using factors like passwords (knowledge), hardware tokens (possession), or biometrics (inherence). It establishes trust boundaries that prevent unauthorized entities from impersonating legitimate users or devices within networks and applications.
Weak authentication enables attackers to perform account takeover, privilege escalation, or lateral movement by exploiting stolen credentials, phishing, or replay attacks. Deploying multi-factor authentication (MFA) with independent factors significantly reduces these risks. Secure credential storage, regular rotation, and monitoring authentication logs for anomalies are critical defenses to detect and block unauthorized access attempts early in the attack chain.
Cisco on Wednesday rolled out fixes to address a critical security flaw affecting Email Security Appliance (ESA) and Secure Email and Web Manager that could be exploited by an unauthenticated, remote attacker to sidestep authentication
Cisco notified customers this week to patch a critical vulnerability that could allow attackers to bypass authentication and login into the web management interface of Cisco email gateway appliances with non-default configurations. [...]
For a second time in less than a year, the Travis CI platform for software development and testing has exposed user data containing authentication tokens that could give access to developers' accounts on GitHub, Amazon Web Services, and Docker Hub. [...]