TalkTalk Enforcement · 5 October 2016

Fined £400,000 after an attacker took 156,959 customers' details

156,959 customers' details accessed

The Information Commissioner's Office fined TalkTalk £400,000, then its largest fine, over a cyber attack in October 2015. The attacker used SQL injection on three webpages TalkTalk had inherited with Tiscali's UK business in 2009 and reached a customer database. Names, addresses, dates of birth, phone numbers and email addresses of 156,959 customers were accessed, and bank account numbers and sort codes of 15,656. The ICO found the database software had gone unpatched for over three years and that two earlier attacks, in July and September 2015, went unnoticed. TalkTalk paid £320,000 by settling early.

affected · Legacy Tiscali webpages and the customer database behind them

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Incident · Generative AI & AI Assistants