Open Systems Poaches VMware Exec to Serve As New CEO


  • The security firm Open Systems poached Geoff Haydon as its new CEO, the company announced Wednesday.
  • Haydon previously served as a VP at VMware Carbon Black, as well as an exec at Secureworks and RSA.
  • Like other enterprise security firms, Open Systems has seen a bump since the start of the pandemic.
  • See more stories on Insider’s business page.

Security Open Systems has named Geoff Haydon as its new CEO, the company announced Wednesday.

Haydon joins the company from VMware Carbon Black, where he was vice president of sales and customer operations (VMware acquired the security startup Carbon Black in 2019 for $2.1 billion). Before that, he served as chief revenue officer at SecureWorks, CEO at Absolute Software, and vice president for annual security conference RSA.

Haydon plans to oversee a period of expansion for Open Systems, he said in an interview with Insider. Founded in 1990 and co-headquartered in Silicon Valley and Zurich, Switzerland, the company primarily serves customers in Europe but plans to make greater investments in North America as the market for enterprise cybersecurity booms.

“We’ve been in the US market for several years now and it’s our fastest growing geography,” Haydon told Insider.

Open Systems licenses managed security software that detects break-ins by hackers, as well as security services for the edge, which let companies manage their IT infrastructure and security tools through a cloud-based service hosted close to their premises. The private company is backed by the investment firm EQT Mid Market Europe, which bought a majority stake in 2017. 

Like other enterprise security firms, Open Systems has seen a bump in interest since the start of the pandemic, Haydon said. That’s been driven by companies grappling with new security challenges stemming from widespread remote work and the steady rise in costly cyber attacks.

geoff haydon open systems vmware

Open Systems CEO Geoff Haydon

Open Systems


“A lot of our business is concentrated in the mid-market where you have companies that don’t have the level of sophistication or capital to fight the sophisticated vectors that are emerging in today’s cyber reality,” he said. 

Open Systems does not disclose revenue numbers or client growth as a private company, but said that its software has been deployed more than 10,000 times in over 184 countries and is used to protect roughly 3 million endpoints.

Haydon replaces Jeff Brown, who took the helm of Open Systems in 2019.

The company did not clarify the reasons for Brown’s departure, but in a statement Open Systems’ chair Bernd-Michael Rumpf thanked Brown “for his efforts and for ensuring a smooth transition.”



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