To discourage attacks launched from customers' PCs infected with malware or from deliberate misuse, and to be able to react quickly to network attacks, the service terms should state plainly that use of the service may be limited when facilities are overloaded. Users should also be made aware of threats that can give rise to network attacks, for example viruses and botnets (sets of compromised computers commanded and controlled together, normally for malicious ends), and urged to take the needed precautions on their own part.
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