You need an wan connection (and power) to reach the platform!
More your bot make big transaction,more your wan connexion and everything which is required to keep the bot on work will become really important.
To avoid any risk and to be the most secure, maybe a local strategy is better than cloud
Something that:
– multi-wan (with fail-over) access with at list one 3G|4G modem
– inverter (supporting all modems, network elements and also the bot server)
– botserver system on a raid1 or raid5 disk array
With a cloud based strategy or with VPS, you need to rent one or more server on-line, in one hand it represent a cost, and it is not at locally (at home), but in the other hand cloud strategy demonstrate a very low latency (due to the fiber wan access) when acting on different platform.
TIPS: useful for all strategies !
However to limit latency (by excluding external dns request) and avoid also any dns hack/poisoning you may setup manually each platform ip address in the host file