From the following list, choose the least dangerous type of virus.
- Trojan horse
- Worm
- Malware
Trojan horse is the least dangerous type of virus.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
From the following list, choose the least dangerous type of virus.

### Response:
Trojan horse is the least dangerous type of virus.