TOKYO - A new mobile phone in Japan takes security pretty seriously: It can recognize its owner, automatically locks when the person gets too far away from it and can be found via satellite navigation if it goes missing.
The P903i from NTT DoCoMo, Japan's top mobile carrier, comes with a small black card about the size of a movie-ticket stub. The card works as a security key by connecting wirelessly with the cell phone.
If an owner keeps the card in a bag or pocket, the phone recognizes when the card moves too far away and locks automatically to prevent someone from making a call. The user can choose to have the phone lock when it is 26 feet, 66 feet or 130 feet away.
People who lose their security cards can punch in a password to unlock the phone. But they will have to buy a new card to set the lock again.