NSW official emails linked to cheat hack

Workplace email addresses belonging to NSW teachers, paramedics and top bureaucrats were used to sign up to adultery matchmaking website Ashley Madison, analysis by AAP suggests.

Around 250 NSW public servant email addresses appear in a cache of files that hackers say they obtained from the dating service, which bills itself as the "premiere website for discreet connections" between men and women who want to cheat on their spouses.

On the list are email addresses linked to a senior Treasury official, a WorkCover employee and a surgeon, as well as a number of senior employees at local councils around the state.

Teachers and other education department workers made up the largest group but paramedics, police officers and health workers also appeared on the list.

The company behind Ashley Madison, Toronto-based Avid Life Media, has confirmed that it was the subject of an attack but is yet to authenticate any of the data dumped online.

"We are actively monitoring and investigating this situation to determine the validity of any information posted online and will continue to devote significant resources to this effort," the company said in a statement.