Any hardware malfunction (computer,network device,wan,physical wan support) could have some financial critical consequence if they occurs !
Hardrive or usb key or External Hardrive or Any other storage device failure could mean that you lost your wallet
If you build your botserver yourself, you really need to be sure that hardware/os/software configuration is stable and secure & if you code the bot also, you really need to be sure that most of the error/bug will be catch as soon as possible.