TalkTalk
Disclosed Oct 22, 201510 years ago156,959 affectedUnverified
SQL injection attack on TalkTalk steals data of nearly 157,000 customers
TalkTalk said up to four million customers might be affected by an attack on its website; the ICO later found the attacker took personal data of nearly 157,000 customers, including bank details in about 16,000 cases, and fined it a record 400,000 GBP.
What is known
| People affected | 156,959 (as reported by the organization) |
|---|---|
| Disclosed | Oct 22, 2015 |
| Discovered | Oct 2015 |
| Attack | Hacking |
| Data exposed | Names, Addresses, Dates of birth, Phone numbers, Emails, Financial |
| Sector | Telecom · GB |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
| Lawsuit or fine | 400,000 GBP ICO fine (2016) (about $490K) |
Sources
| Source | |
|---|---|
| TalkTalk fined 400,000 GBP for theft of customer detailsbbc.co.uk · News | News |
| TalkTalk cyber-attack: Boss receives ransom emailbbc.co.uk · News | News |
| TalkTalk Group (Wikipedia)en.wikipedia.org · News | News |
| UK data watchdog issues record fine for ISP TalkTalk's 2015 data breachtechcrunch.com · News | News |
Notices filed
Other breaches at TalkTalk
| Breach | Affected | ||||
|---|---|---|---|---|---|
| TalkTalk probes third-party supplier breach after hacker lists data for saleJan 25, 20251 year agoVendor breachUnverified | Jan 25, 20251 year ago | Vendor breach | Telecom | Unverified | Unknown |
History of this record
- 2026-09-25 · fine_usd: empty to 490000 · admin
- 2026-09-25 · discovered: empty to 2015-10 · admin
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research). Record counts are as reported. Not legal advice.