"The expertise that Nick and Sammie bring to Bugcrowd rounds out our leadership team in two important areas: protecting the privacy and security of our employee, researcher community, and customer data, and overseeing the planning and execution of our worldwide marketing efforts to drive strong customer demand for the Bugcrowd platform," said Bugcrowd CEO Ashish Gupta.
"Nick and Sammie have the background, experience and passion for driving success and scaling disruption, and I am thrilled to have them join our team as we continue our rapid growth and help customers secure their digitally connected world."
McKenzie joins Bugcrowd from NAB, where he most recently served as executive general manager and chief security officer.
He previously worked in senior IT risk and security roles at Standard Chartered Bank, J.P. Morgan and UBS. Earlier in his career he was a senior security consultant at both Dimension Data and EY.
McKenzie holds a Bachelor of Commerce from Murdoch University and a Master of eCommerce from Curtin University of Technology.
He is an advisory committee member at La Trobe University, and was previously on the advisory boards of Google and Digital Shadows.
"I'm thrilled to join a team that is continuously driven to empower customers to take control of their digitally-connected assets to reduce risk and secure innovation sooner via crowdsourced cybersecurity," said McKenzie.
"Having held cybersecurity leadership positions for the past 20 years, I believe Bugcrowd's approach has completely revolutionized cybersecurity and is the future of the industry."
Walker has more than 20 years of industry marketing experience, and most recently served as executive vice president and chief marketing officer for Infoblox.
Disclosure: The writer holds NAB shares.