TDS
About the organisation
tdstelecom.com TDS Telecommunications LLC, founded in 1969 and headquartered in Madison, Wisconsin, is a leading U.S. telecommunications provider serving residential and business customers across urban, suburban, and rural communities. The company delivers high-speed fiber-optic internet (up to 8 Gigabit), IP-based TV entertainment, and traditional phone services, alongside business solutions like VoIP, dedicated internet, and data networking. With over 1.1 million connections, TDS is a wholly owned subsidiary of Telephone and Data Systems, Inc. (NYSE: TDS), committed to enhancing communities through reliable, innovative communications technology.
What the listing means
TDS appeared on the thegentlemen leak site on 09 May 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 134 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing TDS as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on tdstelecom.com, change that password now, update it anywhere you reused it, 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/VERTQHRoZWdlbnRsZW1lbg==