Ashley Madison, a dating site that enables spouses to surreptitiously arrange extramarital affairs, suspended fees for users who want to delete their accounts, after hackers threatened to publicly expose millions of users on Monday.

The company insisted that the delete option, which normally carries a $19 fee, would fully wipe clean the user’s personal data.

“The process involves a hard-delete of a requesting user’s profile, including the removal of posted pictures and all messages sent to other system users’ email boxes,” the website said in an official statement.

A hacker ring identified as the Impact Team warned on Monday that it would begin leaking “credit card transactions, real names and addresses, and employee documents and emails” in order to expose “cheating dirtbags.”

Ashley Madison offered a second apology to users in a public statement released on its website on Tuesday.

“We apologize for this unprovoked and criminal intrusion into our customers’ information,” the statement read. “We have always had the confidentiality of our customers’ information foremost in our minds, and have had stringent security measures in place, including working with leading IT vendors from around the world.”

The Leadership Brief. Conversations with the most influential leaders in business and tech. Please enter a valid email address. Sign Up Now Check the box if you do not wish to receive promotional offers via email from TIME. You can unsubscribe at any time. By signing up you are agreeing to our Terms of Use and Privacy Policy . This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Thank you! For your security, we've sent a confirmation email to the address you entered. Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder.

Contact us at letters@time.com.