You can use Symantec Endpoint Protection version 11.0 or later with Backup Exec to provide extra security when the threat of viruses or malware is high. You can configure Backup Exec to automatically run a backup job when the Symantec ThreatCon reaches a level that you specify.
The media server must be connected to the Internet to monitor the ThreatCon level. If the media server is not connected to the Internet, backup jobs are not triggered when the ThreatCon level elevates.
You can find more information about Symantec ThreatCon levels at the following URL:
Creating backup jobs for use with Symantec Endpoint Protection
In the Properties pane, under Settings, click Network and Security.
Check the Run this backup job immediately when an elevated Symantec ThreatCon level is reached check box.
In the Symantec ThreatCon level list, select the level at which you want to Backup Exec to launch this job.
More Information
Changing the backup network and security options for a job