Virtual CISO for SMBs: what it is and when it makes sense

By the QuantumSec team

A senior CISO in Spain costs between €80,000 and €130,000 a year, a figure most SMBs can neither afford nor need full-time. The virtual CISO (vCISO) is the alternative: an external professional or team that takes on strategic security responsibilities part-time, without the cost or commitment of an in-house hire. This guide explains exactly what they do, what they don't replace, and how to tell if your company needs one now.

What a virtual CISO actually does

They define the company's security strategy, prioritize spend based on real risk, oversee applicable regulatory compliance (NIS2, ENS, ISO 27001), coordinate technical providers (pentesting, managed security, training), and act as the point of contact for clients, auditors or the board when security assurances are requested. It's the leadership layer almost no SMB has, even if someone is already handling day-to-day technical work.

What a vCISO doesn't replace

It doesn't replace the team that executes (in-house IT or an MSSP monitoring systems), nor one-off pentesting or technical audits. The vCISO directs strategy; others execute the operational work. Hiring only a vCISO without operational technical support leaves execution uncovered.

Real cost: vCISO vs in-house CISO

A vCISO service for an SMB usually runs €800 to €3,000/month depending on dedicated hours and company complexity, versus €80,000-130,000/year (plus social security and benefits) for a full-time senior CISO. For a company under 100 employees, a vCISO delivers the same strategic judgment at a fraction of the cost, without the risk of depending on a single person who could leave.

When an SMB genuinely needs one

The clearest signals: a client or investor starts demanding evidence of security governance, not just technical controls; the company falls under NIS2 or ENS and nobody internally can translate that into an action plan; or leadership wants to stop making security decisions blind and needs someone to explain real risk in business terms.

FAQ

Can a vCISO sign the NIS2 or ENS declaration of conformity?

They can prepare it and coordinate the whole process, but final legal responsibility rests with company leadership, not the external provider.

How many hours a month does a vCISO dedicate to a typical SMB?

Usually 8 to 20 hours a month, adjusted by phase: more intensive in the first months (assessment and plan) and lighter during maintenance and follow-up.

Can I start with a vCISO and move to an in-house CISO later?

Yes, that path is common. Many companies use the vCISO to build the security program and, once volume justifies it, hire someone in-house with the criteria and documentation already in place.