Cyber Incident Victim: Gyrodata, Inc.
Date:
Jan 2021
Location:
United States of America
Summary
A US-based oil drilling technology firm experienced a ransomware attack resulting in unauthorized access to systems containing sensitive employee data over a period spanning several weeks. The compromised information included names, addresses, dates of birth, government-issued identification numbers, tax documents, and health plan enrollment details of current and former personnel. The organization initiated notification procedures via postal mail and established a dedicated support line for affected individuals while offering complimentary credit monitoring and identity theft protection services, particularly for those whose Social Security or driver's license numbers were exposed.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
Gyrodata, a Houston-based oil drilling technology firm, discovered a ransomware incident on February 21, 2021, which involved unauthorized access to its systems during a period spanning from approximately January 16 to February 22 of that year. The company confirmed that attackers potentially obtained sensitive personal information belonging to current and former employees during this five-week intrusion window. Compromised data included names, addresses, dates of birth, driver's license numbers, Social Security numbers, passport numbers, W-2 tax forms, and health plan enrollment details. While the company statement did not disclose whether operational systems were disrupted by the ransomware payload, it emphasized the significant risk to employee privacy and financial security stemming from the exposure of these high-value identifiers. The breach notification, published in late April 2021, revealed that the investigation determined attackers had intermittent access to corporate systems containing human resources and benefits administration data. With approximately 1,000 employees across international offices including Scotland and Malaysia, the incident carried global implications for workforce privacy. The extended duration of system access increased the likelihood of substantial data exfiltration prior to detection.
Gyrodata initiated formal notification procedures via postal mail to affected individuals beginning April 22, 2021, establishing a dedicated call center to handle inquiries related to the breach. The company advised impacted personnel to monitor financial accounts, review credit reports for unauthorized activity, and scrutinize healthcare statements for fraudulent claims. As a remedial measure, Gyrodata offered complimentary credit monitoring and identity protection services specifically to those whose Social Security numbers or driver's license details were exposed. The firm's public statement directed employees to promptly report discrepancies in insurance claims or medical service records to their providers. No details emerged regarding ransom demands, payment, or whether law enforcement agencies were involved in investigating the intrusion. The response framework focused exclusively on mitigating consumer risks rather than disclosing technical details about the ransomware variant, initial attack vectors, or specific system vulnerabilities exploited.