DARWIN users of matchmaking site AshleyMadison.com might be feeling a bit nervous after the website was hacked, with recent figures showing that 14.1 per cent of Top Enders are registered members.

The site allows married users to find a partner to cheat with, and Darwin has the highest number of users per capita, it has been revealed.

The site has more than 36 million global users, including more than one million Australians.

The hack was claimed by a group named “The Impact Team” and users are now at risk of having private information exposed following its hacking.

The hackers are also understood to have infiltrated other sites owned by AshleyMadison’s company Avid Life Media (ALM), including Cougar Life and Established Men.

It is understood the hackers have accessed user profiles, financial records and even ALM salary information.

ALM chief executive Noel Biderman confirmed the hack, and said they were close to confirming who the “culprit” behind the hacking was.

“We’re on the doorstep of (confirming) who we believe is the culprit, and unfortunately that may have triggered this mass publication,” he said. “It was definitely a person here that was not an employee but certainly had touched our technical services.”