TalkTalk cyber-attack: fifth person arrested in police investigation

Metropolitan police say 18-year-old taken into custody after raid on south Wales property as part of investigation into October data breach

A fifth person has been arrested as part of an investigation into the cyber-attack on telecoms firm TalkTalk in October, the Metropolitan police have said. The 18-year-old was taken into custody after police raided a property in Llanelli, south Wales, on Tuesday and was held at the Dyfed Powys police station on suspicion of blackmail.

Four others have been arrested during the investigation: two 16-year-old boys, a 20-year-old man, and a 15-year-old boy from Northern Ireland who was released on Monday. It was the third in a spate of similar attacks affecting TalkTalk within eight months, with incidents in August and February resulting in customers' data being stolen.