unauthorized modification that alters the proper functioning of equipment or a system in a manner that degrades the security or functionality it provides
term is used for three slightly related means of delaying and disrupting unwanted behaviour. A group in Germany used the term teergrube to refer to a mail transfer agent that uses SMTP continuation lines to hold a mail connection open for long periods of time to disrupt spamming (www.iks-jena.de/mitarb/lutz/usenet/teergrube.en.html). The term is also used to describe throttling of the number of connections a computer can make to reduce the spread of worms. There is also a product that uses the term tarpit to refer to a single machine that emulates a large number of non-existent machines in a kind of honeypot configuration to provide delaying camouflage to divert an intruder.
the totality of protection mechanisms within a computer system, including hardware, firmware, and software, the combination of which is responsible for enforcing a security policy. A TCB consists of one or more components that together enforce a unified security policy over a product or system. The ability of a TCB to enforce correctly a unified security policy depends solely on the mechanisms within the TCB and on the correct input by system administrative personnel of parameters (e.g., a user s clearance level) related to the security policy. The term Trusted Computing Base is now often applied to parts of Windows NT or 2000, regardless of certification or...
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