active impostor acceptance
(n.) In a biometric security system, when an impostor intentionally submits a modified or forged biometric sample as that of an authentic enrollee with the purpose of gaining access to a system using the enrollee’s identity. The forged sample is compared to the enrollee’s reference template. Active impostor acceptance implies that the impostor successfully gains entrance into the system using the falsified identity.
Compare with passive impostor acceptance.
- active matrix display
A type of flat-panel display in which the screen is refreshed more frequently than in conventional passive-matrix displays. The most common type of active-matrix display is based on a technology known as TFT (thin film transistor). The two terms, active matrix and TFT, are often used interchangeably.
- active partition
The primary partition on a hard drive that typically contains and boots the operating system.
- active reconnaissance
(ak´tiv ri-kon´&-zents) (n.) The process of collecting information about an intended target of a malicious hack by probing the target system. Active reconnaissance typically involves port scanning in order to find weaknesses in the target system (i.e., which ports are left vulnerable and/or if there are ways around the firewall and routers). The process of […]
- active tag
In an RFID system the transponder which contains the data to be transmitted is called an RF tag. Active tags have an internal battery to power them and are usually RW (tag data can be rewritten and/or modified). Active tags generally can transmit their data over a longer distance, the tag itself is larger than […]
- actual size
Scanner term used to describe one scaling control option that will scan the document or image at actual size (not enlarged or reduced using zoom in and zoom out features).