Device code sign-in followed by device registration and SharePoint access
Detects a sequence of events where an account performs a device code flow sign-in, registers or joins a device, and accesses a high volume of files in SharePoint or OneDrive within a 24-hour window. This pattern is commonly associated with adversary techniques abusing device code flows for initial access and registering managed/compromised devices to access sensitive corporate data.
Microsoft Sentinel (KQL)
