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We have Business Premium, does Defender suffice or do we keep our AV?

Defender for Business in Premium is a full EDR for SMBs and competes with standalone packages from CrowdStrike or SentinelOne. For many companies double-paying is no longer needed, provided you roll it out correctly.

Try this first

  1. 1Check in Defender admin (security.microsoft.com) that devices are onboarded and signal green, otherwise something is broken.
  2. 2Test that the current external AV does not conflict, two EDRs running simultaneously fight over kernel hooks and performance tanks.
  3. 3Plan a 30-day transition where you compare Defender alerts alongside your old AV before cancelling.
  4. 4Document coverage for non-Windows (macOS, Linux, mobile) because Defender for Business has limits there that are not always clear in a Premium license.

When to bring us in

If you want guided migration to Defender as the only EDR, we can run the migration and set up monitoring.

See also

None of the above fits?

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Or skip the DIY entirely

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