Sergey Belov — Cybersecurity Expert
Head of Banking Systems Security Research Department at Positive Technologies. Since 2023 I have researched the security of banking systems — from payment flows and anti-fraud to mobile applications and core banking platforms. Before that, over a decade of hands-on security work: penetration testing, reverse engineering, and building SSDLC practices and security teams across fintech and Big4.
Securing Business Against Advanced Threats
Independent cybersecurity consulting for fintech, exchange services, and online products
Security Strategy & Advisory
Assess risks, set priorities, and build a practical security roadmap aligned with business goals
BestChange Security Audit
Review your service against BestChange requirements, identify gaps, and prepare clear remediation actions
Security Architecture Review
Analyze critical components, trust boundaries, and key scenarios to uncover design risks early
Pentesting: Web / API / Mobile / Cloud
Simulate real attacks, uncover exploitable weaknesses and attack chains, and provide practical fixes
Fraud & Transaction Security Review
Review signup, KYC, authentication, payments, and payouts for account takeover, abuse, limit bypass, and weak monitoring
Practical Security Training
Hands-on sessions for product and engineering teams: common flaws, secure development, and defensive patterns
Certifications
Professional certifications
Certified Ethical Hacker
EC-Council Certified Security Analyst
Publications
Recent articles, interviews, and insights on cybersecurity trends
How to protect your real estate from being sold using biometrics
Contact
Get in touch to discuss your cybersecurity needs
Get in Touch
I'm available for consulting engagements, speaking opportunities, and security assessments. Reach out to discuss how I can help protect your organization's critical assets.
Book a Consultation
Schedule a 30-minute consultation to discuss your cybersecurity challenges and how I can help.
Book a Meeting