A massive cyberattack against ISP TalkTalk saw 150,000 customer details swiped in October 2015, and now the financial toll is known too; the hack cost the company £60 million and lost it 95,000 customers, it has admitted in its financial results.
Financial results from TalkTalk show the company suffered a £15m trading impact and extra "exceptional" costs of £40 to £45m during the third quarter of 2015. The company's stats say that 95,000 of the 101,000 subscribers it lost during three months were because of the hack.
The hack which was originally described as "significant", then "much more limited", saw 157,000 customers lose data to hackers, though not information which on its own could be used to commit severe fraud.
Several arrests surrounding the hack have been made and the police investigation is continuing.
Of those who had their personal data stolen there were 15,656 full bank account number and sort codes accessed. In addition 28,000 customers has their obscured credit and debit card number accessed. These card details were "orphaned" from customer data and according to the broadband provider could not be identified.
Previously TalkTalk said the hack had "one-off" costs of £35m for the company. The inital costs were in response to the incident, extra loads being put on the call centres, and IT costs.
Trying to look on the bright side of the quarterly results, company boss Dido Harding said 500,000 of the remaining customers decided to take a free upgrade, which was offered after the attack.
and consideration is higher now than it was before the incident," Harding said.
While the hack had an obvious impact on the company's finances and reputation the overall revenue for the company rose 1.8 per cent based on the same quarter in the previous 12 months. The company's shares rose 8.5 percent after the announcement, even as overall sales figures were not disclosed.
This article was originally published by WIRED UK
