Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you must not transmit or otherwise make available to others any worms or viruses or any code of a destructive nature through the services . 

```
. OPTIONS: ['Unilateral change' 'None' 'Choice of law' 'Jurisdiction'
 'Limitation of liability' 'Content removal' 'Unilateral termination'
 'Contract by using' 'Arbitration'].