The assumption was wrong.
Here's what actually happened.

Short, blameless postmortems of real IT failures and operational mistakes. What broke, which assumption was off, what the hidden cause was, and the exact fix — in under three minutes.

Incidents

Searchable archive. Filter by type and domain, then jump to watch / write-up / sources (and the artifact, when available).

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How it works

Credibility over vibes. One rule: no speculation presented as fact. Confirmed vs. likely vs. unknown stays explicit in every episode.

Source standards

  • Primary sources first — vendor postmortems, status page timelines, CVE records, confirmed incident reports.
  • Explicit separation: confirmed / likely / unknown.
  • If it's not sourced, it's labeled or it's cut.

When something's wrong

  • Wrong info gets corrected fast.
  • Corrections noted in the write-up and pinned comment.

contact@opspostmortem.com

About

12 years in IT systems engineering. I've been the one on call, the one fielding the 2am page, and the one writing the postmortem nobody reads. This channel exists to fix the last part.

Why the analysis holds up

Daily hands-on work in enterprise IT — SCCM/ConfigMgr, SolarWinds, PKI, and more. The breakdowns are built from primary sources and firsthand operational context. Speculation is labeled. If it's not sourced, it's not stated as fact.

Every artifact ships from the same question: what would I actually want in front of me during this incident?

Who this is for

  • IT Systems / Tools Engineers
  • SysAdmins / SysOps / Windows Server Admins
  • SREs / Platform Engineers
  • Network Engineers
  • Security Operations
  • Endpoint / Desktop Admins
  • IT Managers

If you're the person who has to figure out what went wrong — this is for you.

Contact

Tips, corrections, incident submissions, or sponsorship inquiries — send it over.

Get in touch

contact@opspostmortem.com

Sending an incident tip? Include your sources. Receipts speed everything up.