Security news aggregator

Latest coverage for Authentication

Stay secure online with the latest on authentication techniques, best practices, and industry updates at the forefront of information security.

3 headlines in this view

Refine the feed

Search across headline titles and summaries.

Tag briefing

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.

Showing 3 most recent headlines Filtered view

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Splunk Enterprise flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Splunk Enterprise flaw, tracked as CVE-2026-20253 (CVSS score of 9.8), to its Known Exploited Vulnerabilities (KEV) catalog. The flaw CVE-2026-20253 is an improper authentication vulnerability in the PostgreSQL sidecar service of […]

Security Affairs 19 Jun 2026, 10:34 p.m. Theme · 2 stories Actively exploited CVE-2026-20253 America Authentication CISA CVE Flaw PostgreSQL Vulnerability

F5 released emergency updates for critical NGINX flaws (CVE-2026-42530, CVE-2026-42055) that could enable unauthenticated code execution. F5 has issued out-of-band patches for multiple NGINX vulnerabilities, including two critical flaws, respectively tracked as CVE-2026-42530 and CVE-2026-42055 (CVSS 9.2). The bugs affect HTTP modules and can be exploited remotely without authentication to trigger memory corruption, potentially causing […]

Security Affairs 19 Jun 2026, 2:07 a.m. Incident · 3 stories CVE-2026-42530 CVE-2026-42055 Authentication Critical Vulnerability CVE F5 Flaw Patch Unauthenticated Vulnerability

Palo Alto Networks warns that attackers are actively exploiting CVE-2026-0257, a PAN-OS flaw that lets unauthorized users bypass authentication and establish VPN connections. Palo Alto Networks has confirmed active exploitation of CVE-2026-0257, a PAN-OS authentication bypass vulnerability affecting GlobalProtect portals and gateways. Palo Alto Networks addressed the vulnerability on May 13. Two weeks later, cybersecurity firm Rapid7 […]

Security Affairs 15 Jun 2026, 11:11 p.m. Actively exploited CVE-2026-0257 Authentication Bypass CVE Exploit Flaw Palo Alto Networks VPN Vulnerability Warning