Relying solely on passwords to secure important accounts may be outdated, but until they’re gone for good your best alternative is locking things down with two-factor authentication: Amazon. Considering you probably already have a credit card or other payment info stored there, it just makes sense to add an extra layer of security that makes sure it’s really you logging in. The only problem? Until recently Amazon didn’t have any option to support the feature, but now it does. I noticed the new option while updating my password last night (also a good security idea), and one of the engineers told me it launched a couple of weeks ago after a private beta.
Source: Amazon Support