Did my information get exposed in the Ashley Madison hack?

To determine whether his information was exposed in the Ashley Madison hack which occurred in 2015, he would need to personally check databases that were made available following the breach. It is recommended that he search for his email address or any other personal identifiers within those databases. Alternatively, there are services and websites that allow individuals to check if their data was compromised in various breaches. He should ensure that he uses trusted and secure resources to prevent further exposure of personal information. Additionally, since it's a matter of personal data security, one should be careful to ensure the legitimacy of any site or service being used to check this information.