Tom Watson, Labour’s Shadow Secretary of State for Digital, Culture, Media and Sport, responding to Facebook’s data breach, said:

“Facebook reaps enormous financial value from the data of its users. One of their single biggest responsibilities is to protect that data and detect breaches. They have failed to do that.

“Facebook should have discovered this industrial scale data breach months ago. It is very disappointing that it has only come to light now.

“We need to know where affected users are and exactly how the breach happened. Facebook should not be refusing to disclose this.

“While the Tories are refusing to do anything to beef up tech regulation, Labour is clear that we need a powerful bill of digital rights and a single regulator strong enough to bring today’s tech titans to heel.”