Atumcell provides leading-edge software, hardware, and services to solve complex cyber security problems for companies and government agencies in North America and Europe.
Co-Founder | CEO
David Williams’ interest in computers and cyber security risk began at age 16, when as a
summer intern at a Veterans Administration hospital he inadvertently crashed the DEC PDP
11/34 minicomputer by programming an infinite loop in MUMPS.
After being confronted by an angry crew of IT staff who ran upstairs from the basement to
perform cyber threat management on him, he largely stuck to the business side of the
He earned an undergraduate degree in economics from Wesleyan and an MBA from Harvard, then
worked in North America, Europe, and Asia with The Boston Consulting Group and MedPharma
He has decades of experience in healthcare technology, policy, targeted risk assessment, and
entrepreneurship and has chaired federal government panels focused on implementing health
information technology. David is passionate about harnessing software to reduce drudgery and
protect good people from those who would harm them.
Co-Founder | Head of Research & Technology
Matthew Carr is an award-winning cyber security researcher and penetration tester who’s
often called upon by government agencies and companies of all sizes for cyber threat
management. He held senior positions in security at IKEA, IBM and SecureLink, where he built
a strong base of real-world experience.
Matthew speaks at leading industry events, lectures on industrial and offensive security, and
competes in legal, competitive hacking events (CTFs) against the big boys from Google,
Microsoft and Tencent.
In recent years he led innovative and daring cyber security research projects that were
featured by the BBC, The Register and Fox News, including print, radio and TV interviews.
Matthew achieved top-50 VIP researcher status on open bug bounty and discovered two Zero-Day
vulnerabilities, one of which affected national security.