CyrusOne

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.

Accounts

373,460

Breach date

Aug 5, 2026

Data exposed

Email addresses, Employers, Job titles, Names, Phone numbers, Physical addresses, Support tickets

Verified by Have I Been Pwned