TalkTalk

Disclosed Jan 25, 2025Unverified

TalkTalk probes third-party supplier breach after hacker lists data for sale

A hacker claimed to be selling data on 18.8 million TalkTalk subscribers; TalkTalk confirmed unauthorized access to a third-party supplier's system but called the claimed figure wholly inaccurate and significantly overstated.

What is known

People affected	Not stated in the sources we have
Disclosed	Jan 25, 2025
Attack	Vendor breach
Data exposed	NamesEmailsPhone numbersIP addresses
Sector	Telecom · GB
Status	Unverified: not yet confirmed by an official notice, a filing or the organization

Sources

Newstechcrunch.com

TalkTalk investigating data breach after hacker claims theft of customer data

Notices filed

TotalJan 25, 2025

ResearchCount not stated

Other breaches at TalkTalk

SQL injection attack on TalkTalk steals data of nearly 157,000 customersHacking exposed names, addresses, dates of birth, phone numbers, emails and financial details.Hacking157K affectedTelecomGBUnverifiedOct 22, 2015

History of this record

Added2026-09-25

First recordedby seedSource

First seen 2026-09-25 (Research). Record counts are as reported. Not legal advice.

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