Bridge : A product that connects a local area network (LAN) to another local area network that uses the same protocol (for example, Ethernet or token ring).
British Standard 7799 : A standard code of practice and provides guidance on how to secure an information system. It includes the management framework, objectives, and control requirements for information security management systems.
To simultaneously send the same message to multiple recipients. One host to all hosts on network.
Broadcast Address : An address used to broadcast a datagram to all hosts on a given network using UDP or ICMP protocol.
Browser : A client computer program that can retrieve and display information from servers on the World Wide Web.
Brute Force : A cryptanalysis technique or other kind of attack method involving an exhaustive procedure that tries all possibilities, one-by-one.
Buffer Overflow : A buffer overflow occurs when a program or process tries to store more data in a buffer (temporary data storage area) than it was intended to hold. Since buffers are created to contain a finite amount of data, the extra information - which has to go somewhere - can overflow into adjacent buffers, corrupting or overwriting the valid data held in them.
Business Continuity Plan (BCP) : A Business Continuity Plan is the plan for emergency response, backup operations, and post-disaster recovery steps that will ensure the availability of critical resources and facilitate the continuity of operations in an emergency situation.
Business Impact Analysis (BIA) : A Business Impact Analysis determines what levels of impact to a system are tolerable.
Byte : A fundamental unit of computer storage; the smallest addressable unit in a computer's architecture. Usually holds one character of information and usually means eight bits.
Badge : Badging Use of a card for identification purposes. Cards used to unlock doors may sometimes be printed to serve also as I D. badges.
Battery standby : A means of automatically switching over to stored battery power during local primary power failure.
Biometrics : The measurement of a physical trait that is unique, such as a fingerprint, hand geometry or iris pattern. In access control this is used to identify authorized users and to grant or deny access.
Break : To open an electrical circuit.
Brownout Low line voltage that can cause misoperation of and possible damage to equipment. For example a motor that tries to start at low voltage can actually be in a lock-rotor condition and can overheat.