- 01Each public postmortem — incident write-up, breach disclosure, regulatory filing — is a paid education someone else absorbed. The habit of reading them, translating them to your own environment, and capturing the takeaways is one of the highest-leverage habits a security leader can build.
- 02Translation discipline: what was the initial access (could it happen here?), what was the dwell time (what detection would have caught it?), what was the blast radius (what would it be in your environment?), what was the response timeline (where would yours be similar or different?), what was the disclosed control gap (is it your control gap too?).
- 03Where to find them: vendor-published incident reports, regulatory filings (8-K disclosures in the U.S., breach notifications in EU), industry post-action reports (CISA advisories, sector-ISAC briefings), major-cloud incident reports. Volume is high; a single curated weekly hour produces material understanding over a year.
- 04Sharing what you learn: a short internal note for each postmortem you read ('here is what happened, here is what we would do similarly or differently') turns individual learning into organizational knowledge. Most teams skip this step; it pays back disproportionately.
Each public postmortem — incident write-up, breach disclosure, regulatory filing — is a paid education someone else absorbed. The habit of reading them, translating them to your own environment, and capturing the takeaways is one of the highest-leverage habits a security leader can build.
The translation discipline
- 01What was the initial access? Could it happen here?
- 02What was the dwell time? What detection would have caught it?
- 03What was the blast radius? What would it be in your environment?
- 04What was the response timeline? Where would yours be similar or different?
- 05What was the disclosed control gap? Is it your control gap too?
Where to find them
Vendor-published incident reports. Regulatory filings (8-K disclosures in the U.S., breach notifications in EU). Industry post-action reports (CISA advisories, sector-ISAC briefings). Major-cloud incident reports. The volume is high; a single curated weekly hour produces material understanding over a year.
Sharing what you learn
A short internal note for each postmortem you read — 'here is what happened, here is what we would do similarly or differently' — turns individual learning into organizational knowledge. Most teams skip this step; it pays back disproportionately.