Dictionary of Information Security

A

ABA Guidelines American Bar Association (ABA) Digital

Signature Guidelines, a framework of legal principles

for using digital signatures and digital certificates in

electronic commerce

ABEND abnormal termination of a software process or a

system (ABnormal END); a crash.The word derives

from an error message originally displayed on the

IBM 360 computer: it does not appear in error mes-

sages of current operating systems although the term

is still used. Abnormal or unexpected termination

may result in possible security vulnerabilities, and so

the term may also be used to refer to the option to

terminate, in a controlled manner, a processing

activity in a computer system because it is impos-

sible or undesirable for the activity to proceed.

Abstract Syntax ...