Expert Cybersecurity
You Can Trust
Over a decade of hands-on experience protecting critical infrastructure, sensitive data, and mission-critical systems for government agencies, Fortune 500 companies, and high-growth technology firms.
Our Mission
To empower organizations with enterprise-grade cybersecurity expertise, enabling them to operate securely, meet compliance requirements, and build resilient defenses against evolving threats.
Our Vision
To be the trusted cybersecurity partner for organizations seeking strategic guidance, technical excellence, and measurable risk reduction—delivered with transparency and integrity.
Our Values
Expertise without ego. Clear communication over jargon. Practical solutions over checkbox compliance. We believe security should enable business, not obstruct it.
Leadership That Delivers
Marwan Diallo
CEO & Founder | Principal Security Consultant
Marwan brings over a decade of cybersecurity leadership, combining deep technical expertise with strategic business acumen. With a foundation in software development, his career spans consulting, security operations, architecture, and executive leadership roles across government, healthcare, finance, technology, and retail sectors.
Public Sector Foundation: Marwan began his career in the public sector, working for the New York State Department of Health Division of Operations and Systems (DOS) for over 5 years, overseeing security architecture, cloud migrations, secure development practices, and compliance with FedRAMP, HIPAA, HITECH, FISMA, ISO 27001/27005, SOC 2/3, NIST 800-series frameworks, OWASP Top 10, and the Risk Management Framework (RMF)—protecting critical NYS Medicaid data and systems, including the eMedNY program.
Private Sector Leadership: Transitioning to the private sector, Marwan spent 5 years at Microsoft, where he led critical security initiatives focusing on threat protection, threat analytics, security operations, compliance, identity management, and governance across Azure cloud platforms and M365 environments. This role deepened his expertise in enterprise-scale security architecture and cloud security operations.
Certifications & Credentials
Education
Master's Degree - University at Albany, State University of New York (SUNY)
Bachelor's Degree - University of Texas at Austin
Our Approach
Strategic partnerships with specialized experts ensure comprehensive security solutions
Specialized Team
We bring together seasoned security professionals with deep expertise across penetration testing, cloud security, compliance, and incident response—delivering comprehensive solutions without the overhead of a large firm.
Risk-Based Methodology
Every engagement begins with understanding your business context, threat landscape, and compliance requirements—then prioritizing controls that deliver the highest risk reduction for your investment.
Hands-On Leadership
Principal-led engagements ensure consistent quality and direct access to senior expertise. You work directly with experienced leadership, not junior associates learning on your dime.
Trusted Across Industries
Diallo Security Advisors has delivered cybersecurity consulting services to organizations across multiple sectors, bringing deep expertise to each engagement.
Consulting Excellence
Diallo Security Advisors provides cybersecurity consulting services to organizations across multiple sectors, including financial institutions, major universities, retail giants, and innovative healthcare AI startups. Our experience spanning government, enterprise technology, finance, education, and healthcare provides unique insights into the varied security challenges organizations face.
Government & Public Sector
State agencies, public health departments, and Medicaid programs requiring FedRAMP, FISMA, and NIST compliance.
Financial Services
Banks and financial institutions needing robust security controls, vulnerability management, and regulatory compliance.
Higher Education
Universities and research institutions protecting sensitive student data, research IP, and campus infrastructure.
Healthcare & Life Sciences
Healthcare providers, AI/ML startups, and health tech companies navigating HIPAA, HITECH, and data privacy requirements.
Technology & SaaS
Cloud platforms, SaaS providers, and tech companies building secure-by-design products and achieving SOC 2 compliance.
Retail & E-Commerce
Consumer brands and retail companies building security programs, protecting customer data, and meeting PCI-DSS standards.
Why Choose Diallo Security Advisors
We combine strategic thinking with hands-on technical expertise to deliver security programs that actually work.
Real-World Experience
15+ years protecting critical infrastructure, not just theoretical knowledge. We've been in the trenches managing incidents, leading audits, and building programs from scratch.
Business-Focused Approach
Security should enable business objectives, not hinder them. We speak both technical and executive languages, translating risk into business impact.
Compliance Expertise
Deep hands-on experience with FedRAMP, HIPAA, SOC 2, ISO 27001, FISMA, and NIST frameworks across government, healthcare, and commercial sectors.
No Cookie-Cutter Solutions
Every organization is different. We tailor our recommendations to your specific risk profile, budget, and business goals—not off-the-shelf checklists.
Technical & Strategic Balance
We blend technical depth (vulnerability management, cloud security, architecture) with strategic leadership (board reporting, risk governance, program management).
Clear Communication
No jargon, no inflated complexity. We provide straightforward guidance, transparent pricing, and actionable recommendations you can actually implement.
Ready to Strengthen Your Security Posture?
Let's discuss how Diallo Security Advisors can help protect your organization, meet compliance requirements, and build a resilient security program.