Zero Trust for SMBs: where to start
Pragmatic Zero Trust approach for SMBs: identity, MFA, conditional access, devices, segmentation, and SaaS.
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Areas of expertise
- Cybersécurité pour PME
- Services managés
- Gouvernance et risques
Problem
Zero Trust feels complex, expensive, and reserved for large enterprises.
Expected outcome
A progressive roadmap that starts with identity.
Start with identity
Identity is the new perimeter: accounts, MFA, and access rights.
- MFA everywhere.
- Conditional access.
- Privilege review.
Control devices
A valid user on a compromised device is still dangerous.
- Endpoint inventory.
- Disk encryption.
- EDR and patching.
Segment progressively
Segmentation limits lateral movement without a complete redesign.
- Separate critical systems.
- Restrict admin.
- Log sensitive access.
Frequently asked questions
Does Zero Trust mean trusting no one?
It means explicitly verifying each access based on identity, device, context, and risk.
Is it possible without a large budget?
Yes, by starting with MFA, conditional access, and privilege management.
What is the first step?
Inventory accounts and enable MFA on critical access.
Methodology and limitations
This content is a practical synthesis intended to guide an initial review. Applicable priorities, timelines, costs, and controls depend on your environment, assets, and risk level; validate them before making a decision.
Useful primary references:
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