If I were the OP or someone equally sure I was likely to be targeted via my Amazon account, I&#x27;d consider:<p>Using a unique email address.<p>Using a unique physical address (both for my account details and for my delivery addresses).<p>Use a unique credit card (I&#x27;d probably get a refillable prepaid gift card, and set up some auto topup to ensure it&#x27;s got my expected monthly Amazon bill available as &quot;credit&quot;, but not much more).<p>I&#x27;d probably move any AWS billing to a different Amazon account.<p>If I were more paranoid (or being actively targeted), I&#x27;d probably also try to go unique on _everything_ I tell Amazon; phone numbers, different city&#x2F;state&#x2F;zipcode (as well as street address), company name, website url, alternate contacts - then I&#x27;d set up &quot;Security questions&quot; with unguessable questions&#x2F;answers (perhaps diceware&#x2F;xkcd style &quot;correct horse battery staple&quot; type ones, that a CS rep could easily read out and verify - rather than a base64 GUID...).<p>Not that I trust the &quot;security questions&quot;, but if Amazon lets you use freeform questions as well as answers, it might help to make your first security question &quot;Have you noticed this account has two factor authentication turned on?&quot; with an answer like &quot;Yes, so Amazon Customer Service will take additional care when being asked to reveal account information, right?&quot;