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About Proofpoint

  • Jason Donahue

    Jason Donahue

    Chief Executive Officer

    As Chief Executive Officer, Jason Donahue is responsible for leading the company through its next phase of rapid growth. He plans to grow its presence in the messaging security industry by expanding relationships with partners and by exploring new areas of investments for expansion.

    With nearly two decades of experience, Jason successfully lead both public and private companies including Acronis, Vertex Business Services, Atlantis Computing, Meiosys, Ejasent, ClearApp, TeleComputing, and Apptix. In addition to his role at Cloudmark, Jason serves on several boards of directors.

  • Tony Gaughan

    Tony Gaughan

    Chief Technology Officer

    As Chief Technology Officer, Tony Gaughan is responsible for defining the company's vision and forward-looking product strategy. His responsibility includes evaluating the competitive landscape, emerging technologies, and new markets that Cloudmark could serve with new solutions. With over 25 years of experience in various product development and executive roles within both small and large companies, Tony brings a wealth of knowledge and experience to help launch Cloudmark's next phase of expansion.

    Prior to joining Cloudmark, Tony has held chief executive and senior product management roles at a multitude of companies, including Marketron, Serenhipity, SGI, Satmetrix, Computer Associates, and Oracle. Tony earned a B.S. in computer science from Heriot-Watt University, Edinburgh, Scotland with a specific focus on machine learning.

  • Marina Hardof

    Marina Hardof

    Chief Financial Officer

    As Chief Financial Officer at Cloudmark, Marina Hardof leads Cloudmark’s financial planning and partnering functions, as well as all accounting and tax functions.

    Leveraging over 15 years of experience in financial operations, Marina joined Cloudmark in 2013 where she was a key contributor in successfully transforming Cloudmark’s finance and accounting groups into a high performing team.

    Prior to joining Cloudmark, Marina was a Director of Finance and Assistant Controller at Unwired Planet (Openwave Systems). Prior to Unwired Planet, Marina spent 10 years with Ernst and Young and Deloitte servicing a variety of clients in the technology industry.

    Marina holds a BA in Economics and Accounting from Hebrew University of Jerusalem and an MBA from the Haas School of Business, Berkeley University, and is a licensed CPA in California, Colorado and Israel.

  • Paul Buttle

    Paul Buttle

    Senior Vice President, Worldwide Sales

    As Senior Vice President of Worldwide Sales at Cloudmark, Paul Buttle is responsible for leading the strategic direction and execution of global sales. During his tenure, he has successfully increased new business, lead new sales initiatives, opened new channels and executed customer relationships outside of the Americas. He also previously served as Cloudmark’s Vice President of International Sales and Global Services, as well as Vice President of EMEA Sales.

    Paul has over 16 years of International sales experience selling complex software solutions with robust value propositions to mobile network operators, telecommunications organizations, internet service providers, media and cable operators across EMEA and Asia.

    Prior to joining Cloudmark in 2011, Paul achieved success working in several senior sales management positions at Bytemobile, British Telecom and Motorola, as well as a number of software startups. Paul holds a BA Hons Marketing.

  • Lori Cho

    Vice President, Operations

    As Vice President of Operations, Lori Cho oversees the entire IT and Operations Infrastructure and Architecture teams at Cloudmark. These teams manage the entire infrastructure for all customer-facing services spanning on-premises, and cloud technologies and platforms.

    Prior to joining Cloudmark in 2004 as a junior Systems Programmer, Lori held various positions at technology companies such as Sun Microsystems. With over 18 years of experience in technology, Lori is an active member in Anita Borg's Systers, the world's largest email community of women in technical roles in computing.

    She has a Bachelor of Science in Computer Science from Whitworth College.

  • Debra Kladis

    Debra Kladis

    Vice President, Sales Operations and Treasurer

    In the role of Vice President of Sales Operations and Treasurer for Cloudmark, Debra Kladis leads Cloudmark’s treasury function and governs worldwide sales enablement, CRM development initiatives and compliance.

    Debra has over 20 years of broad experience in financial management positions across a variety of industries including telecommunications, energy, and consumer products where she was instrumental in re-engineering and driving increases in top line growth, profitability and sales productivity.

    Prior to joining Cloudmark in 2012, Debra held several executive management positions at Movius Corporation including Interim CFO, Vice President of Finance, Vice President of Sales Operations, and Director of Business Systems and Process. Debra also served in key financial and strategic planning positions at Square D Company, James River Corporation (acquired by Georgia Pacific) and Xerox Corporation. Debra holds a BA in Finance from Siena College.

  • Angela Knox

    Angela Knox

    Senior Vice President, Engineering

    Angela Knox is Senior Vice President of Engineering at Cloudmark, where she oversees the research and development of Cloudmark's content filtering technology, sender reputation services and threat intelligence data systems.

    Prior to joining Cloudmark in 2005, she was a senior software engineer at Critical Path. With over 16 years of experience in Internet messaging and security, Angela was listed as one of the five females leading the way in cyber security. She has presented at numerous events and currently sits on M3AAWG's Board of Directors representing Cloudmark.

    Angela has a BCom/BSc in information systems and computer science from the University of Auckland and an MBA from New York University's Stern School of Business.

  • Mike Reading

    Mike Reading

    Senior Vice President, Support and Technical Services

    As Senior Vice President of Support and Technical Services, Mike Reading leads the field technical teams that are responsible for customer presales, professional services, technical account management and support.

    Mike has over 15 years of experience delivering messaging and messaging security solutions to service providers, mobile operators and fortune 500 companies. While at Cloudmark, Mike was part of the initial team of solutions architects that lead Cloudmark’s evolution from a company primarily focused on consumer and desktop applications to a company positioned to solve messaging security problems for some of the world’s largest service providers. Mike has led the development of the company’s anti-abuse policy best practices and sender reputation strategies, and helped Cloudmark establish and maintain market leadership across the Americas and around the world.

    Prior to Cloudmark, Mike was at Openwave ( where he was responsible for bringing carrier-scale ISP and mobile messaging solutions to its worldwide customers. He helped lead the strategy to expand Openwave’s offerings into messaging anti-abuse solutions, which lead to the development of several anti-abuse products and an eventual partnership between Openwave and Cloudmark.

    Mike holds a master’s degree in mechanical and computer-aided engineering from Cornell University. Mike has been part of M3AAWG since its inception and is currently on the M3AAWG board.

  • Kevin San Diego

    Kevin San Diego

    Vice President, Product Management

    Kevin San Diego is the Vice President of Product Management at Cloudmark and currently leads the software and service planning efforts for the company's suite of products. Prior to joining Cloudmark in 2007, Kevin was a product manager at Symantec managing the various messaging security appliance and software anti-virus products.

    Prior to Symantec, Kevin worked directly with service provider customers at Brightmail on carrier grade spam and virus filtering solutions.

    He started his career in the messaging industry at Critical Path, one of the first hosted email service providers. As a 17-year messaging industry veteran, Kevin also participates in numerous speaking engagements and remains an active member of multiple industry working groups, including M3AAWG and APWG.

  • Patrick Wong

    Patrick Wong

    Vice President, General Counsel

    Patrick Wong has served as Vice President and General Counsel for Cloudmark since 2014 and oversees worldwide legal matters including all intellectual property, corporate, litigation and licensing activities.

    Patrick has over 18 years of legal experience in both the law firm and in-house legal environments. From 2006 to 2013, he served as Legal Director, Corporate at Dolby Laboratories, Inc., where he was the lead attorney for Dolby’s product sales group and also provided legal support in several mergers and acquisitions activities. Prior to Dolby, Patrick was the Associate General Counsel from 2001 to 2005 at Digital Impact, a public email marketing company.

    Patrick is a certified public accountant (inactive status), and holds a BS in Business Administration from the Haas School of Business at the University of California, Berkeley, and a J.D. from Boalt Hall at the University of California, Berkeley.

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