It's true that a security device should be installed. The security device to be installed between a computer network and the internet is: A Firewall.
<h3>What is a firewall?</h3>
A firewall refers to a hardware or software which is like a gatekeeper that helps to protect internal networks. It monitors incoming and outgoing traffic.
Thus, we see that firewall is the security device that should be installed.
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<span>The correct answer is the third option: if allowed to continue, tax evasion was a serious offense. Tax evasion means not paying your taxes, which, during Thoreau's time, resulted in going to jail. This punishment reflects the idea that tax evasion is a serious offense and that offenders should be treated as criminals. Despite these consequences, Thoreau used tax evasion as a form of civil disobedience. For example, he refused to pay his poll tax during the Mexican War as a way to protest the slavery that was still occurring in the United States. Due to his tax evasion, he went to jail until the poll tax was paid.</span>