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certificate lifecycle management
About this tag
Certificate lifecycle management is a critical operational discipline for enterprise IT, as demonstrated by a recent incident where Microsoft's connectivity.office.com TLS certificate expired and remained unreplaced for roughly 35 hours, triggering browser trust warnings. This event highlights the risks of manual certificate tracking in large organizations, where the pace of certificate issuance and renewal can outstrip traditional oversight. The discussion on WindowsForum.com emphasizes that automated monitoring and renewal processes are essential to avoid service disruptions and security warnings. For administrators managing Microsoft 365 or other cloud services, robust certificate lifecycle management helps maintain trust, prevent outages, and align with best practices for operational hygiene.
Microsoft’s connectivity.office.com, a Microsoft 365 network diagnostic site used by administrators to test access to cloud services, began showing browser trust warnings after its TLS certificate expired on June 14, 2026, and remained unreplaced for roughly 35 hours as of Monday, according to...