ShieldBreak cloud provider registration and placeholder staging

Duo Tech@duotech

•updated Aug 12, 2026•5•0•16

Detects registration of an unrecognized cloud sync provider combined with placeholder file creation within a short window, consistent with ShieldBreak's TOCTOU race staging technique. Excludes signed installs/re-registrations of known legitimate cloud sync clients (OneDrive, Dropbox, Google Drive, Box).