Mesh Security Adds Five Cybersecurity Leaders to Advisory Board

Advisors bring experience across security sectors

The new board members are Yiannis Vassiliades, CISO in Residence at Zscaler; Jack Nelson, CISO and Deputy General Counsel at Ivanti; Guy Avnor, CISO at Sapiens; Jeff Schiemann, former CISO at AMINA Bank; and Dr. Chase Cunningham, creator of Forrester’s Zero Trust eXtended, or ZTX, framework.

Mesh Security said the group brings experience in cloud security, enterprise software, insurance technology, regulated banking and Zero Trust strategy. The advisors will serve in their personal capacities, while their company affiliations are provided for identification only.

• Vassiliades has nearly three decades of cybersecurity experience. He previously served as Chief Product Officer at Ostrich Cyber-Risk and helped establish and scale Sophos’s MDR business.
• Nelson works across cybersecurity, enterprise risk and legal strategy at Ivanti.
• Avnor leads information security for Sapiens, a global insurance software provider.
• Schiemann is a former CISO of FINMA-regulated AMINA Bank and was a 2025 Swiss CISO of the Year finalist.
• Cunningham, known as “Dr. Zero Trust,” formerly served as Vice President and Principal Analyst at Forrester Research. He is also a retired U.S. Navy Chief Cryptologic Technician.

Focus on connected security context

Mesh Security said security teams often have access to many tools but lack connected context. Its stated focus is linking information about identities, assets, exposures and controls so teams can see how those elements combine into viable attack paths.

According to Mesh, the advisors will provide practitioner perspectives on product priorities, enterprise adoption, and board-level reporting and decision-making. The company said this guidance is particularly relevant as AI agents and non-human identities increase the number of elements that security teams must monitor.

“Security tools are effective at the jobs they were designed to do, but attackers move across the boundaries between them,” Mesh Security CEO and co-founder Netanel (Neo) Azoulay said. The company said the board will help it show teams which paths are genuinely exploitable and provide security leaders with evidence for action.

What Mesh Security says its platform does

Mesh Security describes itself as a unified intelligence layer for enterprise security teams. Its platform connects to tools that teams already run across cloud, SaaS, on-premises and AI environments, without agents, and correlates signals across domains.

The company said the platform reveals viable attack paths to critical assets, while also inventorying, detecting and responding to AI agents, non-human identities and MCP connections. Mesh positions the product as a Cybersecurity Mesh Architecture platform that helps teams prioritize exposures, use guided remediation workflows and reduce risk without replacing their existing security stack.

The advisory appointments give Mesh access to security leaders with experience in several enterprise and regulated environments. Based on the company’s announcement, their role is to inform how Mesh develops its product and communicates security risk to both operational teams and boards.