Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
reverse engineer , decompile , disassemble , decipher or otherwise attempt to derive the source code for any underlying software or other intellectual property used to provide the service or any supercell game , or to obtain any information from the service or any supercell game using any method not expressly permitted by supercell . 

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