1. A record of both completed and attempted accesses and service.
2. Data in the form of a logical path linking a sequence of events, used to trace the transactions that have affected the contents of a record.
3. [In INFOSEC, a] chronological record of system activities to enable the reconstruction and examination of the sequence of events and/or changes… (Read More →)

A function that checks a security audit trail in order to produce, if appropriate, security alarm messages [10181-7].

A function that archives a part of the security audit trail [10181-7].

A function that collects individual audit trail records into a security audit trail [10181-7].

A function that builds security reports out of one or more security audit trails [10181-7].

A function that provides security audit trails according to some criteria [10181-7].

Abbreviation for attachment unit interface.

Sporadic radiant emission from the upper atmosphere that usually occurs about the North and South magnetic poles of the Earth.
Note 1: Auroras are most intense at times of intense magnetic storms caused by sunspot activity. The distribution of auroral intensity with altitude shows a pronounced maximum near 100 km above the Earth. Auroras may occasionally be observed within 40°… (Read More →)

1. To establish, usually by challenge and response, that a transmission attempt is authorized and valid.
2. [To] verify the identity of a user, user device, or other entity, or the integrity of data stored, transmitted, or otherwise exposed to unauthorized modification in an information system (IS), or establish the validity of a transmission. [INFOSEC-99]
3. A challenge given by… (Read More →)

An identity of a principal that has been assured through authentication [10181-2].