Screen capture protection rules control data copied and pasted from a screen. They are supported on Trellix DLP Endpoint - SaaS for Windows only.
Use classification definitions to limit the rule to specific content fingerprinting criteria. You can also limit the rule to local users or to specified user groups, or by applications visible on the screen.
Note
Screen capture protection rules do not check content classification criteria. Use content fingerprinting criteria when defining classifications used with screen capture rules.
To block screen captures from the Windows Explorer preview pane, disable the pane in the client configuration ( Policy Catalog → Windows Client Configuration → Screen Capture Protection).