The boss of the company which owns adultery website Ashley Madison has stepped down from his role.

Avid Life Media say Noel Biderman is no longer with the firm.

The details of 37 million users were dumped online by a group of hackers last week.

Avid Life Media is offering a reward for help catching those responsible.

Superintendent Bryce Evans from Toronto Police said the hack "has, and will continue to, have a long term social and economic impact, and they have already sparked spin-offs of crimes and further victimisation".

A group calling themselves Impact Team have taken credit for the hack.

Avid Life has offered a US$500,000 (€445,399) reward for information on the hackers.

In a statement last week, Avid Life Media said: "The criminal, or criminals, involved in this act have appointed themselves as the moral judge, juror, and executioner, seeing fit to impose a personal notion of virtue on all of society".

"We will not sit idly by and allow these thieves to force their personal ideology on citizens around the world".