TALK.L Regulatory News (TALK)

RNS Announcement

23 October 2015

For Immediate Release

TalkTalk Telecom Group PLC ("Company")

A criminal investigation was launched by the Metropolitan Police Cyber Crime Unit on 22 October 2015 following a significant and sustained cyberattack on the Company's website. That investigation is ongoing, but unfortunately there is a chance that some of the following data has been compromised: names, addresses, date of birth, phone numbers, email addresses, TalkTalk account information, credit card details and/or bank details. The Company is continuing to work with leading cyber crime specialists and the Metropolitan Police to establish exactly what happened and the extent of any information accessed.

Dido Harding, CEO, said: "TalkTalk constantly updates its systems to make sure they are as secure as possible against the rapidly evolving threat of cyber crime, impacting an increasing number of individuals and organisations. We take any threat to the security of our customers' data extremely seriously and we are taking all the necessary steps to understand what has happened here. As a precaution, we are contacting all our customers straight away with information, support and advice around yesterday's attack."

Contact Details:

Analysts and Investors: Mal Patel +44 (0) 20 3417 1037

Media: Isobel Bradshaw +44 (0) 20 3417 1027/07584 708351