How to Hire a CISO (Chief Information Security Officer)

What Is a Chief Information Security Officer?

The Chief Information Security Officer is the most commercially consequential technology leadership appointment UK firms have added to their C-suite in the last decade. As cyber threats have escalated, regulation has tightened, and boards have accepted that information security is a governance matter rather than an IT matter, the CISO has moved from a technical role buried inside the technology function to a board-facing appointment with strategic accountability.

This guide explains the CISO role in a UK context, how it relates to the CIO and CTO, what the UK and European regulatory framework requires of CISOs and their firms, what the candidate profile looks like, and how to run a credible search. It draws on the work Exec Capital does on CISO appointments across regulated industries, financial services, technology firms, and critical national infrastructure sectors.

The CISO is not the head of IT security. It is a distinct C-suite role with accountability for security strategy, regulatory compliance, incident response, and board-level risk communication. Firms that hire a senior IT security manager and give them the CISO title without the mandate, the reporting line, or the budget that the role requires will find that neither the candidate nor the function delivers what the business needs.

CISO vs CIO and CTO: Where Security Leadership Sits

The relationship between the CISO, CIO, and CTO is one of the most frequently mismanaged structural questions in technology governance. Understanding the distinctions is essential before writing a CISO brief.

The CIO (Chief Information Officer) is responsible for information systems and technology infrastructure — the firm’s IT estate, data management, and technology-enabled business operations. The CIO’s mandate is largely inward-facing: keeping the technology running, enabling the business, and managing the technology supplier relationships.

The CTO (Chief Technology Officer) is responsible for the technology that the firm builds and deploys as part of its product or service. The CTO’s mandate is largely outward-facing at product-led firms: technology architecture, engineering capability, and the technical quality of what the firm delivers to customers.

The CISO is responsible for the security of the firm’s information assets — not their management or their architecture, but their protection. The CISO’s accountability spans the full information estate: customer data, employee data, intellectual property, financial records, operational technology, and third-party systems. This accountability is firm-wide, not limited to the technology function.

The structural question is who the CISO reports to. Where the CISO reports to the CIO, they are providing assurance within the function they are meant to assure — a genuine governance conflict. Where the CISO reports directly to the CEO or CFO, they have independence. Where the CISO reports to the board audit or risk committee, they have the highest possible independence but may lack the operational influence needed to drive change across the business. Best practice at UK regulated firms, as reflected in FCA guidance, is for the CISO to have direct access to the board regardless of their formal reporting line, with day-to-day accountability to the CEO or a non-technology C-suite executive.

The UK Regulatory Framework for CISOs

The UK and European regulatory environment has created a set of specific requirements that make the CISO appointment a compliance matter as well as a talent matter for many firms. Understanding this framework is essential context for the CISO search brief.

UK NIS Regulations. The Network and Information Systems (NIS) Regulations 2018, implementing the EU NIS Directive into UK law, require operators of essential services and relevant digital service providers to implement appropriate security measures and report significant incidents. Post-Brexit, the UK has updated these requirements through the Network and Information Systems (Amendment) Regulations, and the government’s National Cyber Strategy sets out the policy direction for future development. The CISO at a firm in scope for NIS is not just a leadership appointment — they are a named accountability holder under a regulatory framework.

DORA (Digital Operational Resilience Act). The EU’s Digital Operational Resilience Act, which took effect in January 2025, applies to financial entities with EU operations or EU customers, regardless of where they are headquartered. UK financial services firms with European business need to understand the DORA requirements for ICT risk management, incident reporting, and third-party risk management — and the CISO is typically the accountable senior leader for DORA compliance.

FCA Operational Resilience. The FCA’s Operational Resilience framework, effective from March 2022, requires FCA-regulated firms to identify their important business services, set impact tolerances, and ensure they can remain within those tolerances during severe but plausible disruption scenarios. The CISO’s role in mapping critical systems, assessing cyber threats to operational continuity, and reporting to the board on resilience status is explicit in the FCA’s expectations.

UK GDPR and Data Protection. The UK GDPR and Data Protection Act 2018 set out specific requirements around personal data security. While the DPO (Data Protection Officer) is the formal named role under GDPR, the CISO is accountable for the technical security measures that underpin GDPR compliance. At many firms these roles sit in the same team.

Cyber Essentials and NCSC frameworks. The UK government’s Cyber Essentials scheme and the National Cyber Security Centre’s (NCSC) guidance frameworks provide baseline standards that UK firms are expected to meet, with Cyber Essentials Plus certification increasingly required for government contracts and as a condition of cyber insurance. The CISO is the accountable leader for achieving and maintaining these certifications.

What a CISO Actually Does

The CISO mandate at a UK firm typically spans five areas of ownership, each requiring a different skill set.

Security strategy and governance. The CISO sets the information security strategy for the firm — defining the risk appetite, the security architecture principles, the priority investments, and the governance framework that ensures accountability across the business. This is a board-level conversation, and the CISO must be able to translate technical risk into commercial language that boards and executives can act on.

Threat intelligence and risk management. The CISO maintains the firm’s understanding of the external threat landscape — the threat actors relevant to the firm’s sector, the attack vectors most likely to be exploited, and the emerging threats that require preventive investment. This intelligence feeds directly into the security investment decisions and the board risk register.

Security operations and incident response. When a security incident occurs, the CISO leads the response. This includes activating the incident response plan, coordinating internal and external teams, managing communication to the board and regulators, and overseeing the forensic investigation and remediation. The quality of the CISO’s incident response capability is often the difference between a contained breach and a catastrophic one.

Third-party risk and supply chain security. Modern firms operate with extensive third-party technology dependencies. The CISO is accountable for assessing and managing the security risk that these third parties introduce — through vendor assessment programmes, contractual security requirements, and ongoing monitoring. DORA has made this area of CISO accountability explicit for financial firms with EU operations.

Security culture and awareness. The most technically sophisticated security architecture can be defeated by a single phishing click. The CISO is responsible for the firm’s security culture — the awareness training, the reporting mechanisms, and the behavioural norms that make employees the first line of defence rather than the primary vulnerability.

When Is the Right Time to Hire a CISO?

Three situations consistently drive the right moment for a CISO appointment at UK firms.

Regulatory trigger. Entry into a regulated market — financial services, healthcare, critical national infrastructure, government contracting — almost always requires a CISO-level appointment, either explicitly (as in some FCA-authorised firm structures) or effectively (as a practical requirement of the compliance programme). For FCA-regulated firms, the CISO function intersects with the Operational Resilience and DORA compliance requirements in a way that makes an underpowered appointment a regulatory risk.

Scale and complexity trigger. A firm that has reached 200+ employees, is processing significant volumes of customer personal data, and is operating on complex multi-cloud or hybrid technology infrastructure has a security risk profile that cannot be managed by a security manager reporting to the IT function. The complexity requires a senior leader with strategic accountability, budget authority, and board access.

Security incident trigger. A significant breach, a ransomware attack, or a material third-party compromise is the most common immediate driver of a CISO appointment. This is the worst time to make the hire — under regulatory scrutiny, with the board in reactive mode, and with a compressed timeline — but it is unfortunately when many firms make it. Firms that hire a CISO before an incident are significantly better placed to prevent one, and to manage one if it occurs.

The CISO Candidate Profile

The CISO candidate market in the UK is tight. Demand has grown significantly faster than supply, and the combination of technical depth, commercial communication skills, and regulatory literacy that a board-facing CISO role requires is genuinely rare.

Technical depth is the foundation. A CISO who has not personally operated in a technical security role — who has managed upwards rather than building security capability — will lack credibility with the security team and will be unable to evaluate the quality of the technical work being done. The most effective CISOs have typically spent the first decade of their career in security operations, penetration testing, network security, or security architecture before moving into leadership roles. This foundation cannot be substituted by general leadership experience.

Commercial communication is the differentiator. The ability to translate technical risk into business risk is the skill that separates CISOs who are effective at the board level from those who are excellent technical leaders but limited strategic contributors. A CISO who can explain a zero-day vulnerability in terms of revenue exposure, regulatory fine risk, and reputational impact — without losing the technical precision that makes the analysis credible — is a rare commodity.

Regulatory literacy is increasingly mandatory. For firms in financial services, healthcare, critical infrastructure, or government supply chains, the CISO needs to be literate in the relevant regulatory frameworks — not just aware of them, but able to design the security programme around them, engage with regulators directly if required, and advise the board on compliance risk. This is a different skill set from pure technical security leadership.

Certifications provide baseline assurance. CISSP (Certified Information Systems Security Professional), CISM (Certified Information Security Manager), and CISA (Certified Information Systems Auditor) are the most widely recognised professional credentials in the field. The ISC2, which administers the CISSP, and ISACA, which administers the CISM and CISA, are the primary professional bodies. These certifications are not substitutes for genuine experience but they provide a useful baseline indicator of professional engagement with the field.

Sector experience matters more for CISOs than for most C-suite roles. The threat landscape, the regulatory framework, and the security architecture requirements differ significantly between financial services, healthcare, retail, and technology sectors. A CISO moving from a major bank to a fintech will find the transition manageable; a CISO moving from retail into a financial services firm will face a steep regulatory learning curve. Sector fit should be weighted more heavily in the CISO brief than in most other senior appointments.

Where CISO Talent Comes From

The CISO talent pool in the UK draws from several sources, each with different characteristics and different readiness for board-facing roles.

Deputy CISOs and VP Security roles. The most directly comparable candidates are those currently operating as CISO number two — Deputy CISOs, VP of Security, or Director of Information Security at firms with an existing CISO function. These candidates have board exposure, understand the governance requirements, and are ready to take the top seat.

Security architects and operational leads making the step up. Highly credible technical candidates who have led large security operations or designed enterprise-scale security architectures, but have not yet held a CISO title. These candidates need careful assessment on the board communication and commercial dimensions, but can be outstanding long-term appointments when the gap is bridgeable.

Big Four and specialist consulting firms. Security consultants from Deloitte, KPMG, PwC, and specialist cybersecurity firms often have excellent regulatory literacy and board communication skills, but may lack the hands-on operational security experience that gives credibility with an internal security team. These candidates work well at firms where the CISO role is primarily governance and oversight rather than operational security leadership.

NCSC and government security backgrounds. Former National Cyber Security Centre staff and senior government security professionals bring deep threat intelligence knowledge and strong credibility with regulators, but may need a transition period to adapt to commercial pace and private-sector governance dynamics.

Running the CISO Search

A CISO search requires technical advisory input alongside the executive search process. The hiring panel needs to be able to evaluate the candidate’s technical depth as well as their leadership and communication skills — which requires either a technically credible internal assessor or an external adviser who can provide that evaluation.

Technical assessment structure. The most effective CISO assessment processes include a technical scenario exercise — presenting the candidate with a realistic security incident or architecture challenge and observing how they think through it. This is not a test of whether they can answer the question correctly; it is a test of how they reason under pressure, how they communicate risk, and what assumptions they make about the firm’s risk appetite. The output of this exercise tells the hiring panel more than a structured interview about the candidate’s actual security thinking.

Board-level presentation. A CISO assessment process should include a board or audit committee presentation — either live or simulated. This tests the candidate’s ability to communicate security risk in governance terms, to handle challenge from non-technical board members, and to demonstrate the credibility that will be required on a day-one basis.

Timeline. CISO searches typically run 14–18 weeks for a clean, full-mandate search. The longer timeline reflects the tighter candidate pool, the need for technical assessment design, and the board involvement in the final stage. Firms under regulatory pressure to fill the role quickly should invest in an interim CISO while the permanent search runs carefully, rather than compressing the process and making a poor appointment.

CISO Compensation Benchmarks

CISO compensation in the UK has increased significantly over the past five years as demand has exceeded supply. The following benchmarks reflect the current market for permanent CISO appointments.

Base salary. At UK scaling firms and mid-market companies (500–5,000 employees), CISO base salaries typically run from £150,000 to £250,000 depending on sector, firm size, and the scope of the regulatory mandate. FCA-regulated firms and critical infrastructure operators tend to pay at the upper end. FTSE 100 CISO appointments can reach £300,000–£400,000 in base.

Bonus. Annual bonuses of 20–40% of base are standard. At PE-backed firms and listed companies, bonus components may be tied to specific security programme milestones — achieving Cyber Essentials Plus certification, completing a security architecture review, or passing a regulatory audit — in addition to standard company performance metrics.

Equity and long-term incentives. CISO roles at scaling and PE-backed firms increasingly include equity participation, recognising the strategic importance of the role. Options of 0.15%–0.4% of the equity pool are common at series C–D firms. Listed firms typically include the CISO in their LTIP programme at a level below the core C-suite but above the broader director population.

See the Executive Compensation Guide for broader benchmarks across C-suite roles.

Onboarding Your CISO

A CISO who is not given a structured onboarding plan will spend the first three months conducting the security audit they should have been given on day one. That is not wasted time — understanding the firm’s security posture from the ground up is essential — but it means the strategic impact of the appointment is delayed, and the board and CEO often interpret the silence as slow start rather than methodical assessment.

The first 30 days should be structured around a rapid security estate assessment: understanding the current security architecture, the tooling in place, the team capability and gaps, the existing incident response plan and when it was last tested, the third-party risk register, and the outstanding compliance obligations. The CISO should not be expected to have a full strategy by the end of month one, but they should be able to give the CEO and board a clear-eyed assessment of where the firm’s security posture is strong and where the material risks lie.

Days 30–60 should produce an initial risk prioritisation — the three to five security risks that the CISO believes require immediate investment or process change, and an outline programme for addressing them. This period should also include the CISO’s first board or audit committee presentation: not necessarily a full strategy update, but an introduction and an initial risk assessment that establishes their credibility at governance level before an incident forces the introduction in less favourable circumstances.

Days 60–90 should deliver a 12-month security programme proposal — investment requirements, team build plan, compliance milestones, and a baseline set of security KPIs that the board will receive on an ongoing basis. The CISO should also have established their reporting rhythm with the CEO by this point: how often they will meet, what format the CEO wants security risk updates in, and what thresholds trigger immediate escalation outside the normal reporting cycle.

One appointment the CISO should make in the first 90 days is a specialist employment lawyer briefing. UK employment law as it applies to monitoring employees — including the use of security tools that log activity on corporate devices — sits at the intersection of GDPR, the Human Rights Act, and the Investigatory Powers Act. Getting this right before an incident occurs is significantly easier than doing so under time pressure when legal exposure is live. The Acas guidance on monitoring at work provides a useful starting framework.

The CISO at a Scaling or PE-Backed Firm

The CISO role at a scaling technology firm or PE-backed business has different characteristics from the regulated-firm CISO mandate. The regulatory intensity is typically lower — unless the firm is in financial services or critical infrastructure — but the speed of change in the security estate, the pace of headcount growth, and the evolving threat profile as the firm becomes more commercially significant all create a distinct set of challenges.

At a scaling firm, the CISO is often a first-time appointment in that function — building the security programme from a relatively early stage rather than inheriting an established one. This build mandate requires candidates who have operated in constructive security environments before, not just mature ones. The ability to prioritise ruthlessly — implementing the highest-impact security controls first with limited budget and limited team — is the critical capability for this context.

PE-backed firms face specific CISO pressures around exit preparation. Acquirers and their advisers increasingly conduct detailed cyber security due diligence as part of M&A processes, and a security estate with significant unresolved vulnerabilities, inadequate incident response capability, or poor data governance can materially reduce transaction value or introduce conditions into deal documentation. A CISO hired 18–24 months before a planned exit with a specific mandate to prepare the security function for scrutiny can add direct commercial value to the transaction outcome.

For firms in financial services, the CISO role connects to the FCA’s Operational Resilience framework and, for dual-regulated firms, the PRA’s equivalent requirements. This regulatory layer is substantial enough to warrant a CISO with specific financial services regulatory experience, not just general corporate security background. See the Financial Services Executive Hiring guide and the SMF Roles guide for context on the regulated firm governance environment.

Common Hiring Mistakes

1. Hiring a security manager and calling them a CISO. The most common mistake. The firm approves a CISO budget but writes a brief for a security operations lead — no board access, no budget authority, no strategic mandate. The result is a frustrated hire who cannot deliver what the role requires and a security function that remains under-invested.

2. Wrong reporting line. Placing the CISO under the CIO creates a governance conflict that undermines the CISO’s independence. For regulated firms in particular, this is not just a cultural problem — it is a compliance risk.

3. Over-indexing on certifications at the expense of experience. CISSP and CISM are useful baseline indicators but do not substitute for genuine operational experience. A candidate with every available certification but limited hands-on security architecture or incident response experience will struggle in a genuine CISO mandate.

4. Neglecting sector fit. More than most C-suite roles, the CISO needs sector-relevant experience — particularly in regulated industries where the regulatory literacy gap is significant. Appointing a CISO without financial services experience into an FCA-regulated firm is a foreseeable risk that reference work and assessment design should flag.

5. Not involving the board in the process. The CISO will present to the board from day one. If the board has not met the candidate before the appointment, the first board interaction becomes the assessment — which is too late and too high-stakes.

How Exec Capital Approaches CISO Appointments

Exec Capital runs CISO searches as retained mandates with technical assessment design built into the process. We work with a panel of active and former CISOs who provide technical advisory input on candidate assessment — ensuring that the hiring panel can evaluate both the strategic leadership and the technical depth dimensions of the role.

Our CISO search practice operates across financial services, technology, professional services, and critical infrastructure sectors. We maintain direct relationships with the CISO community through the NCSC, cybersecurity professional bodies, and sector-specific security forums, allowing us to approach candidates who are not publicly visible in the market.

The CISO appointment sits at the intersection of our C-suite practice and our CTO practice. For firms in FCA-regulated sectors, see also our Financial Services Executive Hiring guide.

Further Reading and Authoritative Sources

For authoritative guidance on UK cyber security requirements, the National Cyber Security Centre (NCSC) publishes frameworks, guidance, and threat intelligence that are directly relevant to CISO appointments and security programme design. Their Board Toolkit is specifically designed to support board-level engagement with cyber risk.

On the regulatory framework for UK financial services firms, the FCA’s Operational Resilience guidance and its accompanying policy statement set out the specific requirements for FCA-regulated firms on ICT risk management and incident response. The Bank of England’s Operational Resilience supervisory statement covers dual-regulated firms.

For DORA compliance, the European Banking Authority’s DORA guidance provides the technical standards and implementation timelines relevant to UK firms with EU operations. The ICO’s guidance on UK GDPR security requirements covers the personal data protection dimension of the CISO mandate.

Related Exec Capital guides: How to Hire a CTO · How to Hire a CIO · Financial Services Executive Hiring · SMF Roles Guide · Tech and SaaS Executive Hiring · Executive Search Methodology