Yahoo confirmed last week that data from at least 500 million user accounts had been stolen in the company's network from late 2014.*
However, the number of affected accounts may be between 1 billion and 3 billion, Business Insider reported Friday, citing one former Yahoo executive who is familiar with the company's security and still speaks to employees at the company.*
The hack could be much larger than Yahoo has said due to how the company stores information on and authenticates users. All of Yahoo's products were affected by the breach and are tied to one user database, the unnamed source said.* Read more...