Three large internet services share the same SMS short code I just noticed, as I add SMS 2-factor authentication to my contacts.app to keep them tidy, that 2-factor authentication, which I am using for Facebook ( only on the web, I was tired of their 300 pound app ) and Yahoo!, as well as eBay, all use the same SMS short code for 2-factor authenticating me. Is this safe? This is a security feature, so I would assume you would not want other companies using your same short code, unless they were partners, or there was some shared authentication service they are using. Though I don't believe any of the SMS services out there are running low on short codes. I am not aware of either of these 3 companies being in any form of an alliance. I have no idea who to contact about this, any suggestions? If you are curious, the short code is 732-873, you may want to search your logs and see if that number shows up for even more companies that just the three I have located so far. Thanks. |