Microsoft have just shared changes that are coming to OneDrive as soon as June.
Microsoft 365 Roadmap | Microsoft 365
Many users have personal OneDrive accounts as well as business ones. If OneDrive detects that a business user also has a personal account, it will, “helpfully” offer to synchronise those files to the business PC, by default.
We can turn it off, but we will need to be asked to do so – we can’t guess who will find this welcome and who will not.
There will be users with a business device that don’t also use it to connect to their personal files. It is unlikely they will be impacted. However, most of us do have our personal email in Outlook to our work PC, and maybe shortcuts to personal files.
There is a cyber-security risk element. Microsoft clearly think that its helpful to have the PC automatically detect these and sync them for users. We think that will be true in most cases, but not all. This is especially true when the business has no control over the content people use on their personal files, and some might be, well, personal, and not appropriate for work. Likewise, it makes it far too easy to accidently, or deliberately, copy sensitive business files into the personal account. From there, the files can be further shared with no further restrictions, unless the business has invested the time and effort in setting up DLP services in 365 – something that is complex and not prevalent in smaller businesses. (some commentators are going so far as to say this will defeat DLP settings, although we are yet to verify this)
OneDrive New Feature Allows Default Sync of Personal & Corporate Accounts
If you wish this to be disabled,
please contact your account manager, site engineer or our service desk.