Security
The safest server is one where every person has their own login and only the rights they need. The panel lets you invite people by email and pick per right what they may touch.
Two things always stay with you as the owner: managing staff and anything to do with billing. Nobody you invite can widen their own rights.
Security articles
Delivery: most servers are handed over instantly and run within seconds of payment, the rest follow within 60 minutes during the day and within 12 hours at night.