In a statement provided to ARN, RSA said a new leader had been identified and would be announced in early January. The vendor added that the person was already working closely wit Yoran on a "smooth transition."
"We truly appreciate the dedication and vision demonstrated by Amit over the last five years at RSA, and we wish him all the best in his new endeavor," the company said in the statement.
Yoran has been appointed chairman and CEO of the cyber security firm, effective January 3, 2017, and will work alongside co-founders Jack Huffard and Renaud Deraison, who have been leading the company during the CEO search.
Tenable said the two will continue in their roles as president and chief operating officer (COO), and chief technology officer, respectively.
“Tenable is one of the most innovative companies in security, and is leading the evolution of vulnerability management into a next-generation technology that addresses some of the most important and fundamental security challenges of today,” said Yoran.
“Over the course of my career, I've met with thousands of IT and business leaders from organisations of all types, from around the world.
“One thing they all have in common is their concern about IT security and risk. They need solutions that help them understand their level of exposure and address the mounting challenges as they adopt technologies like cloud, DevOps, containers and IoT that can radically expand their attack surfaces.
"I believe Tenable is among the best-positioned companies to transform security for customers in the evolving landscape," he said.
Yoran joined RSA via the acquisition of network forensics leader NetWitness, a company he founded and led as CEO. Prior to NetWitness, Yoran served as founding director of the United States Computer Emergency Readiness Team (US-CERT) program in the U.S. Department of Homeland Security.
He also was founder and CEO of Riptech, which was one of the first managed security service providers (MSSP) and was acquired by Symantec in 2002.
Additionally, Yoran serves as a board member and adviser to a number of security startups.
Tenable said Yoran’s appointment comes at a time of accelerated growth and international expansion during which the company has increased billings by more than 40 per cent and broadened its global footprint to a total of 20 countries.
In October 2016, the company announced its first acquisition with the purchase of San Francisco-based container security company, Flawcheck.
In 2015, the company announced a US $230 million Series B investment led by Insight Venture Partners and Accel.
ARN contacted RSA for comment but none was available at the time of publication.