As your startup grows, security questions start coming from all directions. Customers want to see your SOC 2 report. Your board asks about cyber risk. Your developers want guidance on secure coding. You need security leadership — but a full-time CISO costs £150,000+ per year.

Enter the vCISO: a Virtual Chief Information Security Officer who provides fractional security leadership at a fraction of the cost.

What Does a vCISO Actually Do?

A vCISO acts as your organisation's security leader on a part-time or retainer basis. Unlike a consultant who delivers a one-off report, a vCISO provides ongoing strategic direction:

  • Security strategy: Defining your security roadmap aligned to business goals
  • Risk management: Identifying, assessing, and prioritising security risks
  • Compliance: Guiding SOC 2, ISO 27001, Cyber Essentials, and GDPR efforts
  • Vendor evaluation: Helping you choose the right security tools without vendor bias
  • Board reporting: Translating technical risk into business language
  • Incident oversight: Leading the response when things go wrong

When Does Your Startup Need a vCISO?

You probably need a vCISO if any of these sound familiar:

  • Enterprise customers are asking about your security posture before signing contracts
  • You need SOC 2 or ISO 27001 certification but don't know where to start
  • You've had a security incident and realised nobody is in charge of security
  • Your team is making security decisions without a unified strategy
  • You're growing fast and know security debt is accumulating

vCISO vs Full-Time CISO: How to Decide

For most companies under 200 employees, a vCISO is the right choice. You get senior security expertise without the overhead of a full-time executive hire. A typical vCISO engagement costs £2,000-5,000 per month — roughly 10-20% of a full-time CISO salary.

Consider a full-time CISO when your company has complex regulatory requirements, a large engineering team that needs daily security guidance, or when security is core to your product offering.

What to Look for in a vCISO

Not all vCISOs are equal. Here's what matters:

  • Industry experience: Have they worked with companies your size and in your sector?
  • Practical focus: Do they prioritise real risk reduction over checkbox compliance?
  • Communication skills: Can they explain security to non-technical stakeholders?
  • Vendor neutrality: Are they recommending tools because they're right for you, or because they get a commission?
  • Knowledge transfer: Will they build your team's capability, or create dependency?

How Our vCISO Service Works

At Prism Security, our vCISO service starts with understanding your business goals, not your technical stack. We build a security programme that grows with you — starting with the fundamentals and adding sophistication as you scale.

We prioritise practical security over impressive frameworks, and we use open-source tools wherever possible to keep costs down. Most importantly, we transfer knowledge to your team so you become more capable over time, not more dependent on us.