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I haven't seen any issues with withdrawing funds. Are you getting a specific error message, or what exactly is happening when you try to process the withdrawal?
As a side note, I agree that you should keep your bank account info safe. I typically recommend setting up a separate bank account to use as an "internet" bank account. You can hook this up to PayPal and other online services, and only move cash in and out of it when you need to. If anything ever gets hacked or somebody gains access to that account then you know it only has minimal funds in it, and they wouldn't have access to anything else.