Be careful when posing for a selfie

Expert: More biometric information should be used to ensure security

Chinese security experts and officials are advising people to be more careful about making a "V" gesture while taking a photo, because it may raise security risks by exposing their fingerprints.

"It is theoretically possible," said Pei Zhiyong, a cybersecurity specialist at Qihoo 360, a leading security software provider in China.