Tls Certificates
The latest Tls Certificates coverage — news, analysis, and updates from the WindowsNews.AI desk.
Microsoft 365 Diagnostic Tool Goes Untrusted as TLS Certificate Expires
Administrators attempting to use Microsoft’s official network connectivity diagnostic tool, connectivity.office.com, were met with stark browser security warnings on Tuesday after the site’s TLS...
Sectigo MCP Server launches June 2, 2026 for governed AI automation of TLS certificate lifecycles.
Sectigo launched its Model Context Protocol (MCP) server for Certificate Manager on June 2, 2026, marking general availability worldwide. This release lets enterprise IT teams delegate TLS...
Arc Cert-Manager Public Preview Launches April 15 for Hybrid TLS Lifecycle Automation
Microsoft released the public preview of cert-manager support for Azure Arc-enabled Kubernetes on April 15, 2026, delivering a fully supported extension that automates TLS certificate lifecycle...
Johnson Controls iSTAR TLS Certificate Crisis: Security Flaw Exposes Physical Access Systems
A critical security vulnerability affecting Johnson Controls iSTAR door controllers has emerged as a significant threat to physical access control systems worldwide, with a certificate-handling flaw...
Enterprise IT faces alert fatigue as Windows 11 KB5063878 floods logs with harmless CertEnroll Event ID 57 errors
The August 2025 Patch Tuesday cumulative update for Windows 11, KB5063878, has brought an unwelcome surprise for system administrators and power users: a flood of Error-level Event ID 57 entries in...
Patch Now: Critical Hitachi RTU500 Flaw Enables Remote Code Execution
A critical security vulnerability has been discovered in Hitachi Energy's RTU500 series, posing significant risks to industrial control systems worldwide. Tracked as CVE-2023-1514, this flaw in the...
Critical Microsoft Bookings Vulnerability Exposes Users to Impersonation Attacks
A newly discovered vulnerability in Microsoft Bookings has exposed users to potential impersonation attacks, raising significant cybersecurity concerns for organizations relying on the scheduling...