The term is used to refer to programs that attackers install after gaining unauthorized access to a system, ensuring that they can continue to have unrestricted access to the system, even if their initial access method is discovered and blocked.

The answer is "Backdoor"

Explanation:

The backdoor is a computer program, which allows you to access the system in an unauthorized manner. This software overrides the traditional mechanisms for authentication, which is created by the author, who generates the computer code.

to change your username, you must:

1) make sure what the username you want to change to is allowed in this community

2) contact a administrator (for example, jaysl)

3) through pm, tell the admin what you want to change to

4) if the username is allowed, it will be changed in a matter of seconds (minutes at most)

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