Configure the DAT update schedule Published on Sep 13, 2026
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Click the Trellix menulet Preferences .
On the Update tab, click Schedule .
Click OK .
Click the drop-down list to select the update frequency, then click Apply .
Never — Never run the update
We recommend not to select this option. Always keep your DAT files and Engine up to date to protect your Mac from the latest threats.
Daily — To run the update daily at a specific time.
Weekly — To run the update weekly at a specified time on weekdays.
Monthly — To run the update once in a month at a specified time.
Click
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