Exclusive: Big data breaches found at major email services - expert

By Eric Auchard FRANKFURT (Reuters) - Hundreds of millions of hacked user names and passwords for email accounts and other websites are being traded in Russia's criminal underworld, a security expert told Reuters. The discovery of 272.3 million stolen accounts included a majority of users of Mail.ru , Russia's most popular email service, and smaller fractions of Google , Yahoo and Microsoft email users, said Alex Holden, founder and chief information security officer of Hold Security. It is one