Ok, just a note to everyone ! It is online service and your diagrams are stored in the "cloud" and you have zero control over it. Please, do not post your company's secret in form of diagrams. Recently, we caught one of the contractors using Draw.io to make diagrams of brand new systems that we are designing(we are fortune 40 company). System is expensive, very sensitive.
Our G Suite administrators have plenty of control over the G Suite Google Drives that would be used with draw.io and our Google accounts.
The only bits of our data we don't trust with Google are PHI