TORONTO: E-mails sent by the founder of infidelity website AshleyMadison.com appear to have been exposed in a second, larger release of data stolen from its parent company, cyber experts said.

The data dump by hackers who have attacked the site appears to include e-mail messages linked to Noel Biderman, founder and chief executive officer of its Toronto-based parent company Avid Life Media.

In a message accompanying the release, the hackers said: “Hey Noel, you can admit it’s real now.”

That appeared to be a riposte to the company’s initial response to Tuesday’s dump that the data may not be authentic. Former reality TV star and family values campaigner Josh Duggar admitted to cheating on his wife after reports he had subscribed to the site.