Millions of email names, passwords hacked in giant data breach, report says

More than 250 million email usernames and passwords have been breached and are being used by "Russia's criminal underworld," according to a Reuters report. 

Hold Security's Alex Holden, who reported the data breach, told Reuters that the breach affects many of the email addresses on Russia's popular Mail.ru service, as well as addresses from Google, Yahoo and Microsoft.

Holden said his firm came across a Russian hacker who claimed to have more than 1 billion hacked addresses for sale. In total, after eliminating duplicates, the list included 57 million Mail.ru addresses, 40 million Yahoo addresses, 33 million Hotmail addresses and 24 million Gmail addresses. Read more...