INCIDENT REPORT · CP-2025-014
Nevada statewide ransomware attack
L3 · ELEVATEDCONFIRMED
A ransomware attack identified on 24 August 2025 disrupted Nevada state government networks, closing state offices and taking websites and phone lines offline.
- Incident ID
- CP-2025-014
- Disclosure date
- 24 AUG 2025
- Detection date
- 24 AUG 2025
- Affected countries
- United States
- Plotted location
- Carson City, Nevada, United States (Affected state government seat)
- Threat classification
- Level 3 — ELEVATED
- Classification rationale
- Statewide disruption of government services for weeks.
- Attack type
- Ransomware
- Nature
- Malicious activity
- Attack vector
- State employee downloaded malware from a spoofed website; attacker had access from as early as May 2025
- Sectors
- Government
- Critical infrastructure
- Yes
- Organizations affected
- State of Nevada (about 60 state agencies)
- Operational consequences
- State offices closed for two days and DMV offices for over a week; about 60 agencies were disrupted and recovery took about 28 days. The state refused to pay a ransom and reported response costs of about $1.5 million.
- Estimated financial impact
- $1.5M — Nevada Governor's Technology Office after-action report (Nov 2025): at least ~$1.5 million in recovery costs, including ~$1.3 million for external vendors.
- Attribution (as stated)
- No official attribution recorded
SOURCE REFERENCES
- [1] Nevada completes 28-day recovery from statewide cyber incident, refuses ransom and releases after-action reportOffice of the Governor of Nevada · prod.gov.nv.gov
- [2] Nevada ransomware attack started months before it was discovered, per reportSecurityWeek (AP) · securityweek.com
- [3] Cyberattack shuts down Nevada state offices and websites, governor's office saysABC News (AP) · abc7news.com
RECORD CREATED 14 NOV 2026 · LAST UPDATED 14 NOV 2026 · Threat levels are editorial assessments, not official government ratings.