Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
appropriate legal action may be taken for any illegal or unauthorized use of the products . 

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