ICS/SCADA › Module 9 › Lesson 3
Lessons Learned
Lessons learned literacy names post-incident reviews, control improvements, and tabletop follow-ups on fictional plant on YOUR $OT_LAB — defensive OT literacy only; no real-plant attacks, unauthorized OT scans, or exploit cookbooks.
Visual · t38_lessons_learned
Lessons Learned literacy. $OT_LAB only. Original Cyberlium.
Opening
OT incidents without lessons learned repeat — literacy documents improvement rows defenders track to closure.
Lessons learned meetings capture root cause, contributing factors, control gaps, and tracked remediations with owners and dates. Cyberlium drafts lessons learned row after fictional tabletop — not blaming operations or hiding gaps to look compliant. Cyberlium Topic 38 practices on $OT_LAB — YOUR fictional OT templates, zone diagrams, and labeled checklists under $HOME/cyberlium-lab/t38-ot/ no real-plant attacks, unauthorized OT scans, or exploit cookbooks. Next: Reporting Lab.
1. What Lessons Learned covers (named)
Lessons literacy: blameless review, SMART remediation, retest date, linkage to zone/monitoring/hardening modules. Track until verified — not slide-deck theater. On $OT_LAB, document literacy rows on fictional LAB-OT-001 — never live plant IPs, credentials, or exploit steps.
Write lessons learned row — finding, root cause stub, remediation, owner, date. Post INC-LAB-001 fictional tabletop. On $OT_LAB, document literacy rows on fictional LAB-OT-001 — never live plant IPs, credentials, or exploit steps.
Command guide
Try these commands — What Lessons Learned covers (named)
═══ TOOLS & WEBSITES ═══ Browse / read these (authorized learning only — stay in YOUR lab / program scope)
CISA ICS — https://www.cisa.gov/topics/industrial-control-systems NIST SP 800-82 — https://csrc.nist.gov/publications/detail/sp/800-82/rev-3/final
═══ INSTALL ═══
Linux (Debian/Ubuntu):
Command — copy this
sudo apt install python3
macOS:
Command — copy this
brew install python3
Windows: Download https://python.org/downloads/
═══ LINUX / macOS ═══
Command — copy this
export OT_LAB=${OT_LAB:-$HOME/cyberlium-lab/t38-ot}
cat > "$OT_INCIDENT/lessons-learned.csv" <<'EOF'
finding_id,root_cause_stub,remediation,owner,target_date,status
LL-001,vendor VPN cred reuse,enforce MFA + recert,OT-sec,2026-09-15,open
LL-002,missing conduit monitor,add passive tap,SOC,2026-09-30,open
EOFCommand — copy this
grep -E 'LL-00[12]|remediation' "$OT_INCIDENT/lessons-learned.csv"
Primary tools to practice this lesson: grep, python3. Reference sites: CISA ICS (https://www.cisa.gov/topics/industrial-control-systems); NIST SP 800-82 (https://csrc.nist.gov/publications/detail/sp/800-82/rev-3/final). Run every command in the box — install first, then the usage lines — only on YOUR lab / program scope.
2. Why Lessons Learned matters for defenders
Closed-loop lessons reduce repeat OT outages. Feed improvements back to M6–M8 checklists. On $OT_LAB, document literacy rows on fictional LAB-OT-001 — never live plant IPs, credentials, or exploit steps.
Students draft lessons rows on lab notes. Production follows CAPA programs. On $OT_LAB, document literacy rows on fictional LAB-OT-001 — never live plant IPs, credentials, or exploit steps.
3. $OT_LAB boundary
Forbidden: deleting lessons that embarrass IT team. Allowed: lessons learned literacy row on OT lab. On $OT_LAB, document literacy rows on fictional LAB-OT-001 — never live plant IPs, credentials, or exploit steps.
Ship: lessons learned row. Next: Reporting Lab.
4. What you ship: lessons learned card for $OT_LAB
Lessons learned literacy names post-incident reviews, control improvements, and tabletop follow-ups on fictional plant. $OT_LAB named. NEVER real-plant attack steps. chmod 600.
5. What you record before the next lesson
Date (UTC). Lessons Learned card. $OT_LAB named. File t38-m09-l03-lessons-learned.txt chmod 600.
6. Wrong vs right: plant attacks vs YOUR OT lab sims
Worked failure — same MSF word, opposite target. Right never needs a café Wi-Fi or classmate laptop.
Wrong
Skip lessons learned because 'lab exercise doesn't count.'
Right
Write lessons learned card for YOUR $OT_LAB. Next: Reporting Lab.
Mission: document Lessons Learned on YOUR OT lab
1) Name literacy rows on $OT_LAB. 2) Write NEVER list (no real-plant attacks, unauthorized OT scans, or exploit cookbooks). 3) chmod 600. Never scan or exploit real industrial networks.
Stuck? Ask Cyberlium AI Mentor
Ask Mentor: literacy on $OT_LAB — not attack recipes against live plants.
Knowledge Check
APPLY: Lessons Learned on Cyberlium means:
Multiple choice
Knowledge Check
APPLY: True or False: Topic 38 includes ICS attack cookbooks against real plants.
True or False
Knowledge Check
APPLY: Lessons Learned literacy on Cyberlium uses:
Multiple choice