Aidan Tolson

Founder & Principal CISO Advisor

Transforming complex cyber risks into clear business value through fractional CISO leadership and executive mentoring.

20+

Years of executive cybersecurity leadership across global financial institutions

FTSE

100 & 250 experience

Board

Level communications

Regulation

FCA

Regulated environments
Financial services compliance
Supervisory engagement

Frameworks

ISO 27001 · SOC 2
NCSC CAF · NIST
DORA · PCI DSS

Our Mission

Why Choose CISO Advisory Group

Enabling organisations to navigate complex cybersecurity landscapes, ensuring investments translate to real business value.

CISO Advisory Group specialises in delivering C-suite expertise and creating effective cyber strategies that align with business objectives. With over 20 years of leadership experience across tier-1 financial institutions, our holistic approach encompasses strategy, governance, risk management, and mentorship — built for organisations that demand more than checkbox compliance.

Services

Cyber Strategy & Business Value

Aligning cyber strategy with business objectives so security investments translate directly to measurable business value.

Governance, Risk & Compliance

Simplifying oversight and compliance to strengthen decision-making, assurance and performance across your organisation.

Mentoring & Executive Coaching

Empowering cyber leaders to grow with confidence, clarity and lasting impact at every stage of their career.

C-Suite Advisory & Fractional Leadership

Providing board-level cyber leadership that strengthens governance, drives performance and builds executive confidence.

Vendor Strategy & Partnership

Transforming vendor relationships from tactical delivery to strategic collaboration that delivers sustained competitive advantage.

Regulatory Readiness

FCA, DORA, SOC 2, and ISO 27001 readiness assessments with gap analysis, remediation roadmaps, and audit preparation.

Institutional Experience

Tier-1 financial institutions & regulated organisations

HSBC JPMorgan Royal Bank of Scotland CNI & Government LSEG

Engagement Model

◈

Retained

Ongoing fractional or advisory engagement. Monthly cadence, strategic continuity, and consistent senior presence.

◇

Project

Defined scope, fixed timeline. Assessments, programme delivery, audit readiness, and transformation work.

◉

Advisory

Board-level or CISO-to-CISO advisory. Strategic input, independent challenge, and executive coaching.

Book a Session

Free

Initial Discovery Call

30 minutes · Zoom

An obligation-free conversation to understand your challenges and explore how we can help.

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Get in Touch

Send us an enquiry — we respond within one business day

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