It is one of the biggest dating sites with over 90 million registered users across the globe. Mingle2 is a membership service of which users pay to be a part.
There are serious pitfalls to avoid, of course: dodgy sites, "catfishing" and, worst of all, online predators.
The oldest dating site that's still around is Matchmaker, which started as a dial-up BBS in 1985 and ran on a Radio Shack TRS-80 with modems (above).
At first, it was a crude listing of mostly computer nerds within the same area code, but it grew to include email exchanges and became one of the largest pre-web email networks.
In addition, the hackers have revealed email addresses, usernames, dates of birth, postal codes and unique internet addresses of users’ computers.
Channel 4 News has been investigating the cyber underworld, discovering which websites have been hacked and exposing the trade in personal information of millions of people through so-called “dark web” sites.