Can disability see my bank account history?

I made a few thousand dollars from online poker, I got the money mailed to me in checks and I just recently cashed them in at the bank. I dont want to report this money to disability because they'll probably suspend me or something. Can they check my bank account and see my banking history? Do they have the power to do that?|||Yes they do and Yes they can. When you applied you gave written permission to look at your finances