TeleSign, an identity verification and authentication platform, has extended its Series B funding total to a reported $49 million, bringing on Telstra Ventures as a new backer. The company had previously announced a $40 million Series B raise this past April. Initial investors in the round included Adams Street Partners, March Capital Partners and Summit Partners. TeleSign’s Mobile Identity Platform combines phone-based verification with data to help businesses detect a suspicious user before issuing a new account and better protect existing users from account compromise. It protects more than 3.5 billion accounts in over 200 countries, offering services in more than 85 languages. The Series B financing values TeleSign at over $400 million.