The consumer genealogy website MyHeritage says email addresses and password information linked to more than 92 million user accounts have been compromised in an apparent hacking incident.

MyHeritage said its security officer had received a message from a researcher who unearthed a file named "myheritage" on a private server containing email addresses and encrypted passwords of 92,283,889 of its users.

"There has been no evidence that the data in the file was ever used by the perpetrators," the company said in a statement late Monday.