John Visneski

John Visneski is the Chief Information Security Officer (CISO) of Green Impact Exchange, appointed in March 2026.
He has more than 20 years of experience securing global enterprises across the technology, entertainment, healthcare, and defense industries.

Career path

Visneski began his career in cyber operations for the U.S. Air Force, including serving as cyber advisor to the Secretary and Chief of Staff of the Air Force. He went on to hold leadership roles at The Pokémon Company International, where he worked on security and privacy programs, and at Accolade, a publicly traded digital healthcare company, where he served as CISO.
He then became CISO at MGM Studios, overseeing enterprise security and digital workflows during its acquisition by Amazon, after which he was named Head of Security for Mergers & Acquisitions at Amazon.
In June 2024, Sumo Logic appointed Visneski as CISO, where he brought more than 15 years of information security experience spanning the federal government, entertainment and healthcare industries.
At Sumo Logic he led security operations, engineering, governance risk management, compliance and data protection across the business.
He served as CISO at Sumo Logic, a SaaS observability security analytics company, prior to his move to Green Impact Exchange. Green Impact Exchange appointed him CISO in March 2026, with Visneski reporting to Paul Bauccio, Chief Operating Officer.

Remit at Green Impact Exchange

Green Impact Exchange is one of only ten registered stock exchange operators in the United States. In his role, Visneski will build and execute the exchange's enterprise technology and cybersecurity strategies, design scalable systems, oversee secure operations, and help ensure regulatory compliance as the company develops its exchange platform.

Public statement

On joining Green Impact Exchange, Visneski said, "GIX is at the forefront of a fundamental shift in how capital is allocated to the next-generation economy, and security is the bedrock of that mission."