CyrusOne: a data breach
In August 2026, data centre operator CyrusOne was the target of a ShinyHunters "pay or leak" extortion attempt . The group subsequently published data allegedly obtained from the company, which included 373k unique email addresses across records relating to users, sales leads and CyrusOne employees. The data largely consisted of corporate contact information, including names, physical addresses, phone numbers and job titles. It also included support tickets and other information related to the organisation's operations.
The record
- Organisation
- CyrusOne →
- Identity
- CyrusOneidentified by its domain in a verified breach record
- Records affected
- 373,460 records
- Data exposed
- Email addresses, Employers, Job titles, Names, Phone numbers, Physical addresses, Support tickets
- Sector
- Not recorded
- Occurred
- 2026-08-05
- Disclosed
- 2026-10-07
- First recorded here
- 2026-10-08
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Sources (1)
One source so far.
- Have I Been Pwned ↗First reported
2026-10-07