Some one keep getting into my account

Some one keep getting into my account from another device and withdraw my money. It bean frustrating because I change my password and secured my read cash wallet with a 12 word phrase and it continues. I don't believe some one can just figure out my password like that so quickly so it a security issue on this website were it easy for some one to log in people account or it there some one in side the company who has access to other people account and attack people who are new or not paying attention. Why I believe this is a bot because they could change my password so I can't get in .

Please comment below if this happen to you