Former CEO Dido Harding is leaving the company in May after seven years . Current managing director Simon Harrison will take over the role , while Sir Charles Dunstone will become executive chairman after he steps down as chairman of Dixons Carphone in May. The announcement prompted TalkTalk shares to rise 20 % in early trading , having fallen by more than 20 % following a major cyber attack in 2015 . TalkTalk was fined a record £ 400,000 for poor website security , which had facilitated the attack . Baroness Harding , a Conservative peer , said she wanted to focus more on her public service career .
TalkTalk CEO Dido Harding is leaving the company in May after seven years. Current managing director Tristia Harrison will take over the role, while Sir Charles Dunstone will become executive chairman after he steps down as chairman of Dixons Carphone in May. The news prompted TalkTalk shares to rise 6% in early trading, having fallen by more than 20% following a major cyber attack in 2015. TalkTalk was fined a record £400,000 for poor website security, which had facilitated the attack. Baroness Harding, a Conservative peer, said she wanted to focus more on her public service activities.