Users report to the helpdesk that icons usually seen on the menu bar are randomly appearing on their computer screens. What could be a reason that computers are displaying these random graphics?

Users report to the helpdesk that icons usually seen on the menu bar are randomly appearing on their computer screens. What could be a reason that computers are displaying these random graphics?

• An access attack has occurred.
• A virus has infected the computers.
• A DoS attack has been launched against the network.
• The computers are subject to a reconnaissance attack.

Explanation: A virus such as this is harmless, but still needs to be removed. Other viruses can be destructive in that they modify or delete files on the local computer and possibly other computers on the network.

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