American Tower Corporation

American Tower Corporation was compromised in a ransomware attack attributed to shinyhunters in June 2026. The organization, operating in the Telecommunication sector in United States, was added to the group's data leak site as part of an extortion campaign.

shinyhunters operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

Over 5.2 million records consiting of a significant amount of customer and landowner PII, other records tied to other companies such as T-Mobile, Verizon, and the US DHS, several tower asset records containing GPS data and plaintext physical access/gate codes for cell tower compunds across the United States, thousands of internal corporate data, and a lot more were compromised. We urge you to reach out. This is a final warning to reach out by 15 June 2026 before we leak along with several annoying (digital) problems that'll come your way. Make the right decision, don't be the next headline. | Updated: 12 June 2026 | Warning: FINAL WARNING PAY OR LEAK

Intelligence correlations link this incident to 1 vulnerability(ies) including CVE-2026-35273, which may have been leveraged as initial access vectors or for lateral movement.