Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you are responsible for maintaining the confidentiality of your account and password and for restricting access to your device . 

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