LONDON (AP) — Hackers claim to have leaked a massive database of users from Ashley Madison, a matchmaking website for cheating spouses.

In a statement released Tuesday, a group calling itself Impact Team said the site’s owners had not bowed to their demands.

“Now everyone gets to see their data,” the statement said.

The Associated Press wasn’t immediately able to determine the authenticity of the leaked documents but several security analysts who have scanned the data say they believe the dump is genuine. One of them, Errata Security CEO Rob Graham, said he had counted more than 36 million accounts, although he said many appeared to be bogus.

A call to Ashley Madison’s parent company, Toronto-based Avid Life Media, Inc. wasn’t immediately returned. The hackers didn’t return messages.