In 2013 three billion accounts have says Yahoo

LAS VEGAS, NV - JANUARY 07: A Yahoo! logo is shown on a screen during a keynote address by Yahoo! President and CEO Marissa Mayer at the 2014 International CES at The Las Vegas Hotel & Casino on January 7, 2014 in Las Vegas, Nevada. CES, the world's largest annual consumer technology trade show, runs through January 10 and is expected to feature 3,200 exhibitors showing off their latest products and services to about 150,000 attendees. Ethan Miller/Getty Images/AFP
Vastavam web: Yahoo has tripled down on what was already the largest data breach in history, saying it affected all 3 billion accounts on its service, not the 1 billion it revealed late last year.The company announced yesterday that it has sent emails providing notice to additional user accounts affected by the August 2013 data theft.”Whether it’s 1 billion or 3 billion is largely immaterial. Assume it affects you,” Curry said. “Privacy is really the victim here.”
Yahoo first disclosed the breach in December . The stolen information included names, email addresses, phone numbers, birthdates and security questions and answers.Following its acquisition by Verizon in June, Yahoo says, it obtained new intelligence while investigating the breach with help from outside forensic experts. It says the stolen customer information did not include passwords in clear text, payment card data or bank account information.
Verizon spokesman David Samberg said the company has no regrets about buying Yahoo, despite the latest revelation.Companies often don’t know the full extent of a breach and have to revise statements about how it affects customers years later, said Ben Johnson, co-founder and chief technology officer for Obsidian Security, based in Newport Beach, California. Johnson said Yahoo might never know exactly what was accessed.