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Incident

Grayson County

Incident posture

Attack window
Feb 2020
Location
United States of America
Status
Historical
CIA posture
Available to members
Updated
2025-10-31 00:00

Linked entities

Victim
Grayson County
Threat actors
0 actors
Sources
1 source

Timeline

Occurred
Feb 2020
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

A Texas county government experienced a ransomware attack that disrupted its operations, taking systems offline including the records management system. The incident occurred early Monday morning, rendering the system inaccessible when employees arrived at work. State authorities are investigating the attack to determine its scope and origin.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

1 technique

Description

On February 24, 2020, Grayson County, Texas, experienced a ransomware attack that disrupted government systems. The attack occurred in the early morning hours before employees arrived for work, rendering the county’s records management system inaccessible upon their arrival. Information Technology Director Ken Miller confirmed the outage, noting that critical operational systems were forced offline due to the incident. The ransomware’s encryption of systems prompted an immediate disruption to county services reliant on digital records and workflows. No specific details regarding the ransomware variant, initial attack vector, or ransom demands were disclosed in initial reports. The county did not publicly confirm whether data exfiltration occurred alongside the encryption activity.

The Texas state government initiated an investigation into the attack, though no collaborating agencies or investigative methodologies were specified. Grayson County’s operational continuity was impaired by the loss of access to its records management system, which typically supports administrative and potentially law enforcement functions. Restoration timelines and contingency measures remained undisclosed at the time of reporting. The incident underscored the vulnerability of local government infrastructure to disruptive cyber threats. Investigations into the attack’s origin and scope were ongoing as of February 24.

Sources

Sources available to members: 1 source.

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