The breach disclosed Thursday, which included the account information of at least 500 million users is believed to be the largest to hit a single email provider. Washington-based Yahoo spokesman Charles Stewart said the email notifications prompt customers to change passwords, and security questions and answers. Yahoo said Friday that it had issued notices to the majority of email accounts potentially affected by a massive security breach, including to Rogers customers in Canada who use Yahoo email services. At the time of the break-in, Yahoo’s security team was led by Alex Stamos, a respected industry executive who left last year to take a similar job at Facebook. That leaves Verizon with wiggle room to renegotiate the purchase price or even back out if it believes the security breach will harm Yahoo’s business.

Source: thestar September 23, 2016 15:45 UTC