Account takeovers generally happen because people have accessed your login information. Bad actors can try your password on lots of different sites until they find one that works. All passwords on OkCupid are encrypted and not even support staff can see what they are. Make sure the email address on your account is still yours. Add your phone number to your account for Two Factor Authentication / login via SMS instead of a password. If you need a refund for purchases made under your account, contact us at [email protected].”]
Source: https://help.okcupid.com/article/146-someone-has-taken-over-my-account