217K accounts from American Tower (americantower.com) were exposed in this breach. Besides email addresses, it included job titles, names and phone numbers.
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Email addressesJob titlesNamesPhone numbersPhysical addresses
In June 2026, telecommunications tower infrastructure company American Tower was the target of a ShinyHunters "pay or leak" extortion campaign. The group subsequently published data allegedly taken from the company containing more than 200k unique email addresses belonging to employees, contractors, customers, and leads. Exposed data also included names, addresses, and phone numbers.
Source: Have I Been Pwned (CC BY 4.0)