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Is there such a thing as a deposit-only bank account?
Usually the most significant risk scenarios here are: Third parties can abuse your routing/account numbers to initiate debits, but this is a type of fraud that is easily traced. It can happen, but it is more likely that it would be a scenario where you were specifically targeted vs. the victim of some random fraud. Defending against someone who is specifically going after you is very difficult, especially if you don't know about it. Your SSN isnt used for the bank transfer, you are providing it so that the entity making the payments can report on payments to you for tax purposes. If you are truly worried about this type of scenario, I suggest setting up a dedicated savings account for the purpose of receiving these payments and then sweeping (either manually or automatically) the funds into another account. Most stock brokers will allow you to automate this, and most banks will let you do this manually.