This is an assault on the integrity of a security system in which the attacker substitutes a section of cipher text (encrypted text) with a different section that looks like (but is not the same as) the one removed.

Related MCQs

• This is a mode of operation for a block cipher, with the characteristic that each possible block of plaintext has a defined corresponding cipher text value and vice versa.
• In which of the following exploits does an attacker insert malicious coding into a link that appears to be from a trustworthy source?
• In which of the following exploits does an attacker add SQL code to a Web form input box to gain access to resources or make changes to data?
• This is a trial and error method used to decode encrypted data through exhaustive effort rather than employing intellectual strategies.
• This is the name for a group of programmers who are hired to expose errors or security holes in new software or to find out why a computer network's security is being broken.
• This is a type of network security attack in which the intruder takes control of a communication between two entities and masquerades as one of them.
• This type of intrusion relies on the intruder's ability to trick people into breaking normal security procedures.
• What "layer" of an e-mail message should you consider when evaluating e-mail security?
• This is an attack on a computer system that takes advantage of a particular vulnerability that the system offers to intruders.
• This is the inclusion of a secret message in otherwise unencrypted text or images.