A 2012 LinkedIn data theft may have affected far more users than originally thought, the professional networking site says.
LinkedIn is working to invalidate the passwords of some 100 million accounts after it "became aware of an additional set of data that had just been released that claims to be email and hashed password combinations of more than 100 million LinkedIn members from that same theft in 2012," it said in a statement.
Immediate steps are being taken to invalidate the passwords of the accounts impacted and those members will be contacted to reset their passwords, the statement added.
"We have no indication that this is as a result of a new security breach," LinkedIn said.
More than 6 million member passwords were stolen when LinkedIn was hacked in 2012.
