Twitter, Facebook affected by SMS spoofing flaw

Users who send and receive Twitter messages via text message from their mobile phone are vulnerable to a weakness that could allow anyone to post a tweet to their account, according to a developer and security researcher who discovered the flaw.

Jonathan Rudenberg said in a blog post on Monday that all the attacker needs to know is the target’s cell phone number. Then they can spoof the originating address of the text message, or SMS,