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PayPal takes another crack at tightening security
Betanews — ... a fresh one-time credential. The user types in the usual username and password info and logs in. The SMS service answers the ping with a six-digit number -- that is, the credential. The user types the credential into a field on the subsequent pop-up. If one's mobile provider has a nasty habit of delaying text messages, fear not; PayPal falls back to a series of security questions if the credential doesn't get through in time. PayPal has made a two-factor effort before, and the new PayPal SMS Security Key is in fact closely related to the gadget-bsed PayPal Security Key, even ...

PayPal SMS Security Key for tightening security
D' Technology Weblog — ... PayPal has made a two-factor effort before, and the new PayPal SMS Security Key is in fact closely related to the gadget-bsed PayPal Security Key, even using the same security infrastructure. The SMS functionality comes from VeriSign’s Messaging and Mobile Division, which has been working with hundreds of carriers to build a global identity-protection system. ...