Answer:
Trojan
Explanation:
According to my research on different computer viruses, I can say that based on the information provided within the question the type of computer virus being defined is called a Trojan. This is a virus that (like defined in the question) acts as a "back-door" into the victim system. This was named after the Trojan Horse strategy used by the Greeks in order to get into the city of Troy.
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In contrast, expert testimony is admissible only if the witness "qualifies as an expert by virtue of knowledge, skill, experience, education or training" and the testimony provided meets four requirements: increase. Knowledge helps those who know the facts to understand them.
The subject matter of the testimony must be related to the issue at issue. - The usefulness of the testimony outweighs the ill effects it can have.
In the common law system, an expert opinion is usually provided by one of the parties. Evidence must be credible, relevant to the case, conclusive rather than conclusive, and permissible for fact-checking. A fact-finder determines how much weight is given to testimony.
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