American Tower Corporation
About the organisation
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
What the listing means
American Tower Corporation appeared on the shinyhunters leak site on 12 June 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 3 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing American Tower Corporation as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account with this organisation, change the password now and enable two-factor authentication.
- Other Telecommunication organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/QW1lcmljYW4gVG93ZXIgQ29ycG9yYXRpb25Ac2hpbnlodW50ZXJz