A software or hardware mechanism that is hidden and can be triggered to allow system protection mechanisms to be circumvented. The act will by and large supply unusually high, or sometimes even full, access to the system either without an account or from an account that is usually restricted. Backdoor can also be used by sending a certain packet to a secure server network port, see rat. Developer of software recurrently introduce backdoors in their code to allow themselves the luxury of reentering the system and performing particular functions, see maintenance hook.
An assignment performed by the system that by and large stays invisible to the user. The majority of the procedures in advanced or multi-user systems function in the background. Some malware is executed on the system as a background task so that the user doesn’t recognize that unwanted actions are happening. A lot of attacks recurrently take advantage of loopholes in utility procedures working in the background.
A replicated copy of data this is made for archiving purposes and protecting against the loss of data in case of loss or damage. A back up must be stored away from the original in order to be considered secure.
A bastion host is a gateway between an inside network and an outside network. Used as a security measure, the bastion host is designed to defend against attacks aimed at the inside network. Depending on a network's complexity and configuration, a single bastion host may stand guard by itself, or be part of a larger computer security system with different layers of protection.
Network security threats that are specialized and do not attack certain files.
Typically refers to a file but this refers to a internet security threat infection target of originally known characteristics. As a way of trapping file infectors insisting on larger files, a string of untrue and worthless characters of arbitrary length is recurrently used.
A unique and measurable characteristic of a human being used to identify an individual. A key characteristic of a biometric access system is that it must operate in real-time. An example could be a fingerprint scanner, which scans the fingerprint and compares the results instantly to a stored database of acceptable fingerprints. Other characteristics include retina scans and voice recognition. Biometrics can be used with a smart card to authenticate the user. The user's biometric information is stored on a smart card, the card is placed in a reader, and a biometric scanner reads the information to match it against that on the card. This is a fast, accurate, and highly-secure form of user authentication.
A community or individual who either attempts to hack computer systems or explore security primarily from an attack perspective. See white hat. Block cipher a crypto-algorithm which encrypts data by encryption, like 128 bit encryption and ssl encryption, into discrete blocks of a specific size, as compared to a continuous stream of bits of data.
The first Internet security virus, most certainly written in the ms-dos computing environment which became widespread among ordinary computer users. An example of a "strict" boot sector infector and the earliest known use of stealth threat programming.
British Standard 7799 (BS7799)
BS7799 is the British standard for Information Security Management. It has now become an International Standard, ISO 17799. It is in two parts - Part 1 sets out approximately 40 objectives for Information Security, and Part 2 has about 130 controls which can be implemented to achieve those objectives.
An attack where all possible options are used at one time, often in a programmed sequence that attempts to use all possible passwords or decryption keys.
A problem that causes a program to crash or produce invalid output. An unpredictable outcome that can cause actions that are not planned by the programmer or the user.