Hi Everyone!
Hoping I could get some help with the above; I understand this is a fairly common issue and is usually due to bookmarks syncing with iCloud, however this has started happening very recently (within the last week or two) to some of our managed Apple iMac & MacBook devices - some of which don't even have an iCloud account signed in! It's happening sporadically, number of individuals experiencing this issue are scarce though growing inconsistently and there's nothing we've changed or updated from our end (MDM System). All users are running MacOS Mojave and we've always encouraged staff to use Google Chrome as oppose to Safari anyway.
Any help would be greatly appreciated, thank you!