Humans behind the hack-proofing

We are a senior-only team of cybersecurity professionals - engineers, researchers, red teamers, and compliance experts. Specialists with real-world experience.

  • Krasimir Kotsev, Founder & CEO

    Krasimir Kotsev

    Founder & CEO

    Forbes 30 Under 30 honoree and founder of SoCyber and Kikimora. Extensive experience in cybersecurity, including vulnerability assessment, vulnerability management, and system hardening.

    "Security is built on hardening the foundations."

  • Yordan Rafailov

    CFO

    Leads investor and stakeholder relations. Manages short- and long-term financial planning, budgeting, and performance analysis.

    "Precision in numbers, impact in strategy."

  • Rumen Arsenov, Head of Business Development

    Rumen Arsenov

    Head of Business Development

    Over 14 years of experience in sales and business development. Focused on personalized client solutions and innovative approaches to support company growth.

    "Clients don't adapt to us - we adapt to them."

  • Martin Malinov, Head of Product

    Martin Malinov

    Head of Product

    Leads product development. Background in cybersecurity, ISO 27001 systems, auditing, penetration testing, and vulnerability management. Cross-functional experience across development, marketing, and sales.

    "Security starts with curiosity and ends with discipline."

  • Petar Kuzmin, Head of Security Team

    Petar Kuzmin

    Head of Security Team

    Specialised in computer security, penetration testing, networking, and vulnerability assessment. Also active as a teacher and speaker at BlackHat and INDIT.

    "Every system has a story - we read the parts attackers do."

  • Ivaylo Ivanov

    vCISO

    vCISO and threat-and-vulnerability-management consultant, focused on information security governance and NIST 800-53.

  • Dafina Stefanova, Cybersecurity Governance Auditor

    Dafina Stefanova

    Cybersecurity Governance Auditor

    Bridges technical security controls and business objectives. Specialises in governance, risk and compliance, strengthening security frameworks and regulatory alignment.

  • Viktor Rachev, Cybersecurity Specialist

    Viktor Rachev

    Cybersecurity Specialist

    Focused on enterprise vulnerability management, application security, and technical governance. Bridges the gap between raw security data and actionable business risk, ensuring technical remediation aligns with both compliance and operational realities.

  • Viktor Borisov

    Network Security Architect

    Designs and hardens network and security architecture, with a background in network engineering and vulnerability assessment.

  • Viktor Mares, Senior Penetration Tester

    Viktor Mares

    Senior Penetration Tester

    Senior penetration tester and application security engineer, certified across web, mobile and AI/ML security testing.

  • Vladimir Angelov

    Penetration Tester

    Penetration tester and vulnerability assessor, holding OSCP, CRTO and eWPTX.

  • Ahsan Khan, AppSec & Penetration Tester

    Ahsan Khan

    AppSec & Penetration Tester

    AppSec and penetration tester with over 10 years of hands-on experience across web, mobile, API, network, Active Directory, cloud, and thin and thick client testing. A prolific security researcher who has reported thousands of valid vulnerabilities, certified OSCP, OSWE, eCPTXv2, eCPPTv2, eWPTXv2, eWPT, eJPT and CEH.

  • Oleg Antonov, Cybersecurity Consultant

    Oleg Antonov

    Cybersecurity Consultant

    Helps organisations reduce breach risk through cybersecurity, compliance and vulnerability management.

  • Marius Petcu, Country Manager, Romania

    Marius Petcu

    Country Manager, Romania

    Leads market expansion and cybersecurity alliances in Romania, with a focus on NIS2, DORA, ISO 27001 and PCI DSS compliance.

  • Ilian Vasilev, Business Development Manager

    Ilian Vasilev

    Business Development Manager

    Over 20 years in sales and business development, matching clients with the right security solutions and building long-term partnerships.

  • Veselina Mileva, Customer Success

    Veselina Mileva

    Customer Success

    Focused on customer experience and professional services, delivering value across client relationships.

  • Kristina Ivanova

    Administrative Assistant

    Keeps the team running day to day, handling administration and coordination across the company.

Why We're Built Different

A team you would struggle to hire

100% senior consultants

No juniors on engagements. Every assessment is led by an experienced specialist.

Multi-certified across red, blue, and compliance

Offensive, defensive, and governance expertise under one roof.

Real-world operator experience

We have tested and defended live production environments, not just labs.

Researchers, teachers, and speakers

We present and teach at industry events, including BlackHat and INDIT.

Our credentials

Verified expertise you can trust

Backed by a wide array of globally recognized cybersecurity certifications.

Offensive Security

  • Offensive Security Certified Professional (OSCP)
  • Offensive Security Certified Expert (OSCE / OSCE3)
  • Offensive Security Web Expert (OSWE)
  • Offensive Security Wireless Professional (OSWP)
  • Offensive Security Experienced Penetration Tester (OSEP)
  • Offensive Security Exploit Developer (OSED)
  • Certified AI/ML Pentester (C-AI/ML Pen)

Technical & Specialized

  • EC-Council Certified Ethical Hacker (CEH)
  • CREST Registered Penetration Tester (CRT)
  • eWPTXv2, eCPPTv2, eWPT, eJPT
  • Certified Red Team Operator (CRTO)
  • Certified Mobile Penetration Tester (CMPen)
  • AWS Certified Security - Specialty
  • (ISC)² Certified in Cybersecurity (CC)
  • CCNP Security, CPSA, CAP, ICCA

Management & Audit

  • Certified Information Systems Security Professional (CISSP)
  • Certified Information Systems Auditor (CISA)
  • ISO 9001:2015 (Quality Management)
  • ISO 27001:2013 (Information Security Management)

We're always looking for exceptional professionals who think like hackers and act like engineers.

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