Zero Networks has appointed Yossi Dagan Chief Financial Officer, strengthening its senior leadership team as the cybersecurity company scales globally amid increasing demand for automated microsegmentation.
Dagan brings 20 years of finance leadership experience across high-growth technology and public companies, with experience spanning financial strategy, fundraising, M&A and IPOs. He most recently served as CFO of Air Doctor and previously held CFO roles at Noname Security, Pomvom, Matricelf and Top Image Systems.
The appointment comes during a period of rapid growth for Zero Networks. The company recently reported that revenue doubled year over year while its enterprise customer base increased 230%. Zero Networks is protecting 15 Fortune 500 companies, with net dollar retention exceeding 120% and customer retention at 99%.
Zero Networks is also expanding its product, engineering and sales leadership. Dror Bereznitzky has joined as Vice President of Product Management, after serving as Chief Product Officer at Lightrun and previously helping JFrog scale to approximately $200 million in ARR and complete its IPO.
Jason Chaplin has joined as Vice President of Sales, East, bringing more than 25 years of cybersecurity and enterprise sales experience from companies including Illumio, Netskope, Akamai Technologies and Check Point Software Technologies.
Tony Hadzima has been named Vice President of Sales, EMEA, bringing nearly 30 years of international sales and business leadership experience, including 15 years at Palo Alto Networks. Eyal Levi has joined as Vice President of Engineering, following leadership roles at Amazon, Intel, Amobee and Via.
Zero Networks provides Zero Trust security technology centered on identity-driven microsegmentation, which restricts lateral movement inside networks after an attacker gains initial access. The platform uses automated policies designed to reduce attack surfaces and limit the potential impact of ransomware and other cyberattacks.
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“I’m proud to join Zero Networks during such an exciting inflection point,” said Dagan. “The company is redefining how organizations approach network security with automated microsegmentation that makes it dramatically simpler for enterprises to reduce their attack surface and stop lateral movement to ensure and protect uptime. I look forward to partnering with the team to scale the business globally, accelerate growth, and help shape Zero Networks’ next chapter.”
Yossi Dagan, Chief Financial Officer of Zero Networks
“Yossi brings exceptional financial leadership and a proven track record of helping technology companies navigate periods of rapid growth, global expansion and transformation,” said Benny Lakunishok, CEO and Co-Founder of Zero Networks. “Alongside Dror, Jason and Tony, he strengthens our ability to execute against the significant opportunity ahead.”
Benny Lakunishok, CEO and Co-Founder of Zero Networks

