His research interests include speaker diarization and recognition, spoofing and anti-spoofing. He is the lead guest editor of the IEEE Transactions on Information Forensics and Security special issue in Biometrics Spoofing and Countermeasures, the lead guest editor of the IEEE SPM special issue on Biometric Security and Privacy, guest editor of the IEEE Journal of Selected Topics in Signal Processing special issue on Spoofing and Countermeasures for Automatic Speaker Verification and co-organiser of the Automatic Speaker Verification Spoofing and Countermeasures (ASVspoof) Challenge series. He is a member of the IEEE and its Signal Processing Society and currently serves as an Associate Editor of the EURASIP Journal on Audio, Speech and Music Processing. He was general co-chair of IWAENC 2014 and technical programme co-chair of EUSIPCO 2015.