The fractional model
Fractional CISO services for UK businesses
A Fractional CISO is a senior security leader who joins your business for a set number of days each month: embedded in your leadership team, accountable for security strategy, and shared across a small number of clients rather than employed full time.
How it works
A real leader, a fraction of the time
Embedded in your leadership team
Your fractional CISO works set days each month inside your business: attending leadership meetings, chairing the security committee and building relationships with the people who own the risks.
Days per month, matched to need
Most engagements run one to four days a month. Compliance pushes, funding rounds and incidents flex the days up; steady state flexes them down. You are never paying for a full-time seat that the workload does not justify.
Continuity without employment risk
The same named leader month after month, without recruitment fees, notice periods or single-point-of-failure risk. If your fractional CISO is ever unavailable, the CyPro bench stands behind them.
Accountable for outcomes
A prioritised roadmap, measurable risk reduction and audit-ready evidence. Fractional means part-time presence, not part-time accountability.
The work itself spans the same six areas as every engagement we run: see what's included for the full specification.
Is it for you?
Who the fractional model suits
- Scale-ups whose customers and investors now expect a named security leader
- Regulated businesses that need credible security ownership between audits
- Companies replacing a departed security lead without rushing a permanent hire
- Boards that want security represented properly at leadership level
Cost, plainly
Fractional engagements run at £2,375 to £4,995 per month depending on days and scope. Compare that with around £255,000 a year all in for a full-time CISO, once salary, employer National Insurance, pension and overheads are counted, and the model explains itself.
See the pricing tiersSame leaders, different label
Fractional CISO, Virtual CISO and CISO as a Service describe the same senior leadership in different engagement shapes. Whichever fits, the person is a named CyPro partner or senior practitioner with real CISO experience behind them.
Flexible by design
The number of days flexes with your needs: scale up ahead of an audit, a certification push or a funding round, then back down once the pressure passes. There are no recruitment fees and no notice periods to manage.
See how engagements runQuick answers
Fractional CISO FAQs
What is a Fractional CISO?
A Fractional CISO is a senior security leader who joins your business for a set number of days each month: embedded in your leadership team, accountable for security strategy and risk, and shared across a small number of clients rather than employed full time.
How much does a Fractional CISO cost in the UK?
Our fractional engagements run at £2,375 to £4,995 per month depending on days and scope, a fraction of the roughly £255,000 a year an all-in full-time CISO hire costs once salary, employer National Insurance, pension and overheads are counted.
Fractional CISO or Virtual CISO: which do I need?
They are the same seniority delivered in different shapes. Choose fractional if you want a leader visibly embedded in your business on set days. Choose the virtual model if you want flexible, largely remote leadership with on-demand access. We deliver both, with the same named practitioners.
More questions answered on the full FAQ page.
Try the model
Meet your fractional CISO
A free 45 minute discovery call is enough to scope the days, the priorities and the price. If the fractional shape is wrong for you, we will say so.