Tallen Harmsen

I help organizations gain the visibility and control needed to effectively manage third-party risk, reducing both the complexity of the process and the potential impact of third-party-related incidents.

Johannesburg Metropolitan Area

About

A cyberattack, service outage, or compliance failure at a critical third party can disrupt your operations and expose your business to significant risk. I help organizations gain the visibility and control needed to effectively manage third-party risk, reducing both the complexity of the process and the potential impact of third-party-related incidents. My focus is on helping businesses move beyond checkbox compliance and build practical, scalable risk management processes that support informed decision-making and operational continuity. My experience spans third-party risk management, operational resilience, vendor due diligence, cyber and information security risk, compliance governance, continuous monitoring, and supplier risk remediation. I work closely with organizations to help identify critical vendor exposure, improve assessment and monitoring processes, strengthen governance, and reduce the operational uncertainty that often exists within third-party ecosystems. Through my work and content, I aim to simplify complex risk topics into practical business conversations that organizations can act on. If your organization is looking to improve visibility into third-party risk, strengthen resilience, or mature its vendor risk management approach, feel free to connect or reach out.

Experience

  • Managing Director at ICS CyberSec
    Apr 2025 - Present · 1 yr 3 mos

    A cyberattack, service outage, or compliance failure at a critical third party can disrupt your operations and expose your business to significant risk. I help organizations gain the visibility and control needed to effectively manage third-party risk, reducing both the complexity of the process and the potential impact of third-party-related incidents. Over the years, I have supported organizations across Financial Services, Insurance, Banking, Logistics, and other regulated industries in improving visibility into third-party exposure, strengthening compliance, and enhancing operational resilience. This has included successfully delivering and supporting third-party risk initiatives that help organizations mature their governance processes, improve oversight, and build more resilient vendor management practices. My approach combines practical expertise with sustainable governance processes that simplify vendor due diligence, assessments, remediation, and ongoing monitoring. I work closely with teams to strengthen oversight, support informed decision-making, and implement consistent workflows that reduce operational uncertainty and improve resilience across third-party environments. Through managed services, advisory engagements, and risk management solutions, my focus is on helping organizations make smarter third-party decisions while protecting critical data, operations, and business relationships. I’m always open to connecting with organizations looking to strengthen third-party oversight, improve resilience, and simplify vendor risk management.

  • Managing Director at IndigoCube Security Solutions
    Sep 2017 - Apr 2025 · 7 yrs 8 mos

    Indigocube Security Solutions is proudly South African company dedicated to helping clients enhance their organization's cyber risk posture and equipping them to anticipate and address future challenges. Our expert services and cutting edge technologies provide a comprehensive and efficient approach to managing cyber risks, fostering business resilience, and enabling organizations to focus on their core operations while safely growing their business. Partnering with Indigocube Security Solutions ensures that your organization benefits from expert knowledge, advanced technologies, cost efficiency, and a comprehensive approach to managing cyber risks. Allowing you to focus on your core activities - growing your business safely.

  • Information Security Pre-Sales at Puleng Technologies
    Jun 2014 - Sep 2017 · 3 yrs 4 mos

    Providing professional Pre-Sales on the Enterprise Security Products and Services which focus on People and Data.

  • Enterprise Security Pre-Sales Engineer at HP Enterprise Security
    Dec 2013 - Jun 2014 · 7 mos

    Providing professional Pre-Sales on the Enterprise Security Products that consist of ArcSight, Fortify and Tipping Point.

  • Puleng Technologies (5 yrs 9 mos)
    • Information Security Architect
      Jan 2010 - Dec 2013 · 4 yrs

      Architecting Information Security Solutions for Customers using Local Data Centers and Cloud Computing.

    • IT Security Consultant
      Apr 2008 - Jan 2010 · 1 yr 10 mos