I have held this position for years and it still holds true, whether joining a major “cloud” web hosting company, posting on blogs not hosted on your own server, or any of the apps to communicate, own your own stuff. All biz-comm clients are on our dedicated servers and that may be “old school” these days, but so much more secure than joining a “cloud” account. By the way, “cloud” is just a marketing buzzword that means you are renting room on HUGE servers that can be taken down nationwide. See recent issues on the East Coast, USA when Amazon was targeted. Biz-comm didn’t go down because it is NOT an AWS (amazon cloud) account.