The company behind the adultery website Ashley Madison is offering a $500,000 reward for information leading to the arrest of a group that hacked the site.

Hackers last week released detailed records on millions of people registered with the website, one month after a break-in at Ashley Madison's parent company, Toronto-based Avid Life Media Inc. The website, whose slogan is, "Life is short. Have an affair," is marketed to facilitate extramarital affairs.

Toronto Police announced the reward Monday at a news conference.

The hackers who took credit for the break-in have accused the website's owners of deceit and incompetence and said the company refused to bow to their demands to close the site.