Further to the DOJ’s recently updated expectations (p17-18) pertaining to company data and communications residing on personal devices, communications platforms, and messaging applications for purposes of evaluating corporate compliance programs (we reported on here: “DOJ”), Sidley’s “Now You See Them, Now You Don’t: Regulatory Risks of Ephemeral Messages” summarizes US and global regulatory developments concerning employees’ use of ephemeral messaging and provides guidance to companies on responsive actions to mitigate regulatory risk.