Citibank has launched its voice biometrics service for customers in Thailand, as part of a regional drive to implement the high-tech security method.Staff told the Nation that while it has tested the voice biometrics solution with its employees to ensure its accuracy, and that it will be rolled out to the public next month.Vira-anong Chiranakhorn Phutrakul, consumer business manager at Citibank Thailand said the bank has been granted approval from the Bank of Thailand to deploy voice biometrics after testing convinced the BOT that this technology was capable of preventing fraud.Thailand is the eighth market in which Citibank has introduced voice-biometrics authentication. Its banks in Hong Kong, Singapore, Australia, Taiwan, Malaysia, the Philippines and Vietnam have already implemented the technology.Last month, Citibank Thailand introduced fingerprint verification for customers who use mobile and Internet banking.