Glossary
A comprehensive glossary of terms related to call centre security, voice biometrics, and authentication solutions. This resource provides clear definitions and explanations to help you understand the terminology used in modern contact center security.
Browse by Letter
A
- Active Voice Biometrics
- Active Voice Biometrics is an approach to using Voice Biometrics that requires the user to say additional utterances that would not otherwise have been required when calling or interacting with a speech service for authentication or enrolment. Learn More
- Authentication
- Authentication is the call centre security process step in which a user's identity is confirmed. We check they are who they claim to be. It requires the use of one or more authentication factors. Learn More
E
- Efficiency
- Efficiency is one of three measures of Call Centre Security process performance. It represents the actual and opportunity cost of the security process, for example the costs of agent time spent on manual authentication or the missed opportunity for self-service. Learn More
- Enrolment
- Enrolment is a step in the registration process where specific utterances are requested from the user or previously acquired audio is used to create a Voice Biometric template (Voiceprint) for subsequent use in Authentication/Identification. Learn More
F
P
- Passive Voice Biometrics
- Passive Voice Biometrics authenticates and enrols users without them needing to do anything additional to their reason for calling or interacting with a speech service. Learn More
- Presentation Attack
- Presentation attacks are a form of attack on a biometric system when the fraudster attempts to gain access by presenting a fake biometrics characteristic or artefact. In the case of Voice Biometrics, this is most often with a recording or a synthetic voice.
S
- Security
- Security is one of three key measures of Call Centre Security process performance. It is usually expressed as the likelihood that the process allows someone who isn't who they claim to be to access the service (False Accept). Learn More
- Synthetic Speech Detection
- Synthetic Speech Detection is a mechanism used to protect Voice Biometrics systems from presentation attacks using synthetic speech. It relies on detecting characteristics inherent in the text-to-speech (TTS) generation process. Learn More
T
- Text-Dependent Voice Biometrics
- A form of Voice Biometrics that is dependent on the same utterance used during enrolment being repeated during authentication or identification. Learn More
- Text-Independent Voice Biometrics
- Text Independent Voice Biometrics is a form of Voice Biometrics that is not dependent on the utterance being used during enrolment being repeated during authentication or identification. Learn More
- True User Imposter Test (TUIT)
- A True User Imposter Test evaluates the False Accept and False Accept rates of a Voice Biometric system by using existing users of the system to simulate imposter attempts. This is an essential step in establishing the appropriate Biometric threshold. Learn More
- Tuning
- Tuning, in the context of voice biometrics, refers to the process of adjusting the configuration and parameters of a voice biometric system to optimize its performance for a particular task or environment. Learn More