After applying Microsoft Windows security updates released on January 3rd, 2018, the Symantec Endpoint Protection Small Business Edition cloud (SEP SBE) system tray icon reports that it needs attention. No errors are reported if the SEP SBE server client UI is opened but it shows "Needs Attention".
On 1/3/2018, Microsoft released an out-of-band security update for Windows. After applying the update, users may experience this issue. While this problem is not directly related to the ERASER engine update released by Symantec on 1/4/2018 (version 117.3.0), currently Windows Update will hide the update unless the ERASER update is present on the system.
Microsoft has released security updates to address the attention message for SBE cloud server operating systems. The appropriate KB should be installed and the system rebooted to resolve the concern.