TalkTalk, which suffered third major data breach, blamed a significant and sustained cyber attack on its website.
The data breach was announced on Thursday by TalkTalk CEO, Dido Harding.
She said that they had informed law enforcement authorities and had started notifying affected clients.
The claims made by the unknown persons are unverified as of now.
The Metropolitan Police Cyber Crime Unit are investigating the security incident alongside TalkTalks tech staff.
TalkTalk will offer regular one free year of credit monitoring services to the affected customers.
source: www.techworm.net