TalkTalk's share price has fallen again despite the British broadband provider hiring defence company BAE Systems to investigate a cyber attack that may have led to the theft of personal data from its more than 4 million customers. As Grace Pascoe reports one expert believes many other companies are vulnerable.
Cyber attack pulls TalkTalk shares down 9 percent. The fall follows last week's revelations about a widespread data breach, its third this year. And was despite the British broadband provider hiring BAE Systems to investigate. Darren White is from security specialist Agari. (SOUNDBITE) (English) AGARI, DIRECTOR AND GENERAL MANAGER OF EMEA, DARREN WHITE, SAYING: "It is a good move and I think BAE will help them understand exactly what went wrong and what areas they need to fix, and that will only help TalkTalk's business and their consumers be better protected in the future." A ransom demand has been received from the unidentified hackers. And the defence company will investigate how much data has been stolen from TalkTalk and it's 4 million plus customers. London police are now conducting criminal investigations. IHS Global Insight's Jan Randolph says the hack may lead to greater regulation of personal data. (SOUNDBITE) (English) IHS GLOBAL INSIGHT, DIRECTOR OF SOVEREIGN RISK ANALYSIS, JAN RANDOLPH, SAYING: "In some ways this has been a positive, the ways in which hackers out there have been able to damage reputations but also the share price ultimately of companies that have been under attack. This is normally the stuff of movies, but it is now for real and I think many companies and banks will review their cyber security policies in the light of TalkTalk." TalkTalk have said they don't think the hackers have enough information to steal from customers But many firms are taking note of TalkTalk's plight. The UK's Office for National Statistics has revealed nearly 2.5 million cyber crimes took place in the year to June 2015.