“The budget ISP TalkTalk witnessed a huge customer exodus following a high-profile hack attack on its systems late last year.
It told the City on Tuesday morning that the security breach in October 2015—which affected 157,000 subscribers, some of whom had their ‘obscured credit and debit card numbers’ stolen in the attack—had cost the Dido Harding-run company around £60 million. It said that it had suffered a direct ‘trading impact’ of £15 million, after TalkTalk was forced to cut off access to its online services as it scrambled to secure its websites, following the breach.”
Source: TalkTalk loses 95,000 customers, £60 million in costs after hack attack | Ars Technica UK
