If you gave out sensitive personal information, you want to take all possible precautions against identity theft.
If you gave out bank and credit card information, call your bank and credit card carriers IMMEDIATELY. Let them know your account has been compromised. They will probably tell you to close the account and open a new one, which you should do.
Then you must also put a fraud alert against your credit history, because they may have enough information to take out credit cards and loans
in your name and then default on them, which can cause you problems. A fraud alert will protect you from that.
To get a fraud alert, contact any any one of the three credit reporting services, Equifax, Experian or TransUnion (any one of them will automatically notify the other two) and ask to have a fraud alert placed on your credit history. It is free for 90 days, and it means that if, during that time, anyone attempts to open up a credit card or take out a loan in your name, you will get a phone call before any such loan or credit line gets authorized. After 90 days, you can continue the service for a fee. I'm linking you to Experian
, because I have the link handy. Again, they all perform the same service and any one will notify the other two.
A fraud alert does not negatively affect your credit. It simply protects it. You should also monitor your credit history and review your bank and credit card statements carefully to report any unauthorized transactions. If you do this early enough, credit cards will reimburse you for your loss and even your bank may be helpful.
As you also disclosed your social security number, then you would need to notify the social security administration that your number hs been compromised. You won't have to change your SSN, but you should report the issue to the IRS as well so that nobody can try to use your number to collect benefits or tax refunds due you. You are going to want to follow the directions on the Social Security Administration's website here.
Finally, you need to report the fraud to your police, to the FBI at IC3
.gov and to the Federal Trade Commission
at FTC.gov, so that they can try to find these folks and bring them to justice.