Reached by phone, a company representative noted that they could not disclose information about the breach, but that they would be in touch.
The online dating company would not comment on the read receipt, but said its “leadership” only became aware of the breach on 20 May when contacted by Channel 4 News.
"Immediately upon learning this information, we took several steps to review the situation and bring in the right external partners to support our investigation," the statement said.
The Adult Friend Finder data stretched back 20 years and included information such as usernames, emails, join dates and the date of a user’s last visit, according to Leaked Source.
Both that hack and others in the adult industry, such as the 2015 Ashley Madison breach that exposed data from about 36 million users, pale in comparison to the scale of the latest alleged Friend Finder Networks data dump.
In fact, if Leaked Source is correct, only the massive Yahoo data breach disclosed in September, which hit more than half a billion accounts, exposed more user accounts.