‘Your ex can steal your Social Security.’
Want to know the first sign that this is a myth? If your ex tries to claim benefits based on your work record, you won’t even know it happened. You won’t be notified of this request! So ask yourself, how could you see a reduction if the system isn’t even going to let you know what’s going on?
Sure, your former spouse might try and even if they succeed, it won’t take away from what you’re owed. So don’t worry about anyone draining your account. That money’s rightfully yours.