FrostyGoop caused loss of heating to more than 600 Lviv buildings through malicious Modbus commands; an associated firmware downgrade was a separate action
600 buildings / ~2 daysobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| As of | 2024-07-23 |
| Source | Dragos, FrostyGoop ICS malware incident analysis, July 2024; January 2024 Lviv district-heating incident. · Incident mechanism and almost-two-day remediation; malicious Modbus commands and associated firmware action are distinct. |
| Review | checking…review by 2026-09-28 · standard cadence |
| Recorded changes | last 2026-09-16 · 2 revisions tracked |
| Claim id | heat-lost-in-lviv-via-frostygoop-modbus |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.