3-year cost calculator
Pre-filled for Microsoft Defender for Endpoint → Symantec Endpoint Security. Adjust every figure with your own numbers.
Every figure here is an illustrative estimate, not a vendor quote. Defaults are editable starting points compiled from public information; real, binding pricing comes from the vendor or an authorized distributor. See our methodology.
All figures are illustrative and fully editable — adjust the cost-per-endpoint and migration inputs with your own numbers. Not guaranteed vendor pricing (defaults reviewed May 2026). For a binding quote, use the request form below to reach an authorized distributor or partner.
Quick comparison: Microsoft Defender for Endpoint vs Symantec Endpoint Security
Common trade-offs teams weigh when staying on Microsoft Defender for Endpoint versus moving to Symantec Endpoint Security. These are general, commonly-reported considerations — not statements of fact about any vendor — so check them against your own contract and the vendors' current terms.
- Already in production — no migration effort or risk
- Mature ecosystem with vendor support and SLAs
- Per-user/endpoint licensing tied to M365 tiers
- Add-on plans (P1/P2) for full features
- Microsoft ecosystem lock-in
- Ongoing per-user/endpoint (m365) cost to budget for
- Commercial option with vendor support and SLAs
- Cost model: Per-endpoint subscription
- Requires a migration (~15 weeks, medium effort)
- Per-endpoint subscription cost
Why teams evaluate alternatives to Microsoft Defender for Endpoint
Reasons commonly cited by users and in public industry coverage for re-evaluating Microsoft Defender for Endpoint. These are general, reported considerations — not statements of fact about Microsoft — and may not reflect your situation or the vendor's current terms. Verify against your own contract before deciding.
- Per-user/endpoint licensing tied to M365 tiers
- Add-on plans (P1/P2) for full features
- Microsoft ecosystem lock-in
The migration plan
Roughly 15 weeks for a mid-size estate, in six phases.
Tooling & automation
Deploy the new agents via config management, recreate detection rules and responses, integrate with your SIEM, dual-run for coverage validation, then remove the old sensor.
OffVendor's wizard pre-fills these scripts with your environment — inventory export, disk/schema conversion, bulk provisioning, and validation.
Frequently asked
Is migrating from Microsoft Defender for Endpoint to Symantec Endpoint Security worth it?
For most teams facing rising Microsoft Defender for Endpoint costs, yes — Symantec Endpoint Security (per-endpoint subscription) typically lowers 3-year total cost of ownership, though the right answer depends on workload complexity and in-house skills. Use the calculator to model your own numbers.
How long does a Microsoft Defender for Endpoint to Symantec Endpoint Security migration take?
A typical mid-size estimate is around 15 weeks across six phases — discovery, design, pilot, waved production migration, validation, and decommission. Larger or more complex estates take longer.
What tools are used to migrate from Microsoft Defender for Endpoint to Symantec Endpoint Security?
Deploy the new agents via config management, recreate detection rules and responses, integrate with your SIEM, dual-run for coverage validation, then remove the old sensor.