Mitel Appoints Bill Dunnion as Chief Information Security Officer

Highly respected cybersecurity and compliance expert provides proven leadership for Mitel’s global security program

Mitel®, a global leader in business communications, today announced the appointment of Bill Dunnion as Chief Information Security Officer (CISO). Dunnion will oversee Mitel’s information security strategy, security architecture, and security standards compliance. He will also assess, develop, and implement industry best practices for security across Mitel.

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Bill Dunnion, Chief Information Security Officer (CISO) at Mitel. (Photo: Business Wire)

With over two decades of progressive experience across industries, Dunnion brings a deep understanding of IT, cybersecurity, and risk management to Mitel. His extensive knowledge base covers cybersecurity trends, compliance with security standards, frameworks, and emerging business risks.

“Security is at the forefront of everything we do at Mitel,” said Jamshid Rezaei, Chief Information Officer at Mitel. “In today's world, providing secure, reliable, and compliant digital tools, including communications and collaboration solutions, for our employees, partners, and customers is more crucial than ever. Bill’s proven leadership, combined with his considerable experience in implementing and operationalizing cybersecurity policies and procedures, is a great asset for Mitel."

“I am very excited to be joining Mitel to take on this important role,” said Dunnion. "The security threats that businesses face today are ever-changing, which makes it critical for organizations to implement agile solutions that maintain the confidentiality, residency, and protection of the data that employees and end-users rely on. I am eager to work with the combined Mitel and Unify teams to provide a cohesive and comprehensive security program for all our stakeholders."

Before joining Mitel, Dunnion held IT and cybersecurity leadership positions at Calian Ltd, 2Keys Security Solutions, and Bell Canada. In his most recent role as the Senior Director of Corporate Cybersecurity at Calian, he oversaw the development, implementation, and operation of their corporate cybersecurity program. He operationalized the program within the NIST framework and ensured compliance with ISO and SOC2 standards.

Bill has a degree in mechanical engineering from Queen's University in Kingston, Ontario. He serves as volunteer chair of the Canadian Cyber Forum in Ottawa.

About Mitel

A global market leader in business communications powering more than two billion business connections, Mitel helps businesses and service providers connect, collaborate, and provide innovative services to their customers. Our innovation and communications experts serve business users in more than 100 countries. For more information, go to www.mitel.com and follow us on LinkedIn and X @Mitel.

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