According to multiple media reports on Friday, blackmailers have started trawling the database, widely available online, in an attempt to extort the users on it.
Here's the part of the message they received:
Unfortunately your data was leaked in the recent hacking of Ashley Madison and I now have your information. If you would like to prevent me from finding and sharing this information with your significant other send exactly 2.00000054 bitcoins (approx. value $450 USD) to the following address...
You can check the complete news here:
http://www.businessinsider.in/The-blackmail-of-Ashley-Madison-users-has-already-begun/articleshow/48582564.cmsOnce again underground people start spoiling Bitcoin's reputation.