Why is a computer considered to be safe if it is not connected to a network or Internet?
A computer is considered safe if not connected to a network because being alone is the most ideal situation for security. A computer with no link to an external device or computer is free from security threats that arise otherwise. This isolation ensures that the system is protected from potential harm.
Without a network connection, the computer is safe from illegitimate access or misuse of data. It avoids vulnerabilities or weaknesses in communication systems that hackers might exploit to cause damage. Since threats like malware can move across networks to infect computers, a standalone machine remains secure by preventing unauthorized traffic from untrusted outside networks.
Explanation
The textbook context explicitly states in section 12.1 that 'Being alone is the most ideal situation for an individual in terms of security' and applies this to computers. It notes that a computer with 'no link to an external device or computer is free from the security threats arising otherwise.' The context further explains that network security is about protecting devices from illegitimate access and vulnerabilities. By being disconnected, the computer avoids threats like worms (which move across networks) and unauthorized access from untrusted external networks.
Solution Steps
Step 1: Identify the core concept from the text: 'Being alone' is the ideal security situation for a computer.
Step 2: Explain that a computer with 'no link' to external devices is 'free from security threats'.
Step 3: Mention that this prevents 'illegitimate access' and exploitation of 'vulnerabilities' by hackers or malware.