Answer:
The biggest lesson with the use of cloud computing services is that one should act as if unsecured even after purchasing the best and most "technologically advanced "
Many Cloud Computing Service provider always secure their layers. However, many users fo the services don't secure their systems. Some leave default passwords as it, weak passwords and or no advanced firewalls but those preinstalled with their systems using default settings.
Those contemplating cloud services must ensure that:
Cheers!