Cisco's security business was one of the highlights during its fourth-quarter earnings call on Wednesday.

Cisco reported security revenues of $627 million in the quarter, an increase of 12% from the same quarter a year ago. Cisco CEO Chuck Robbins touted the importance of security by saying Cisco was "the largest network and enterprise security company," according to a Seeking Alpha transcript.

Robbins said on the earnings call that "security continues to be our customers' number one concern and it is a top priority for us." Roberts pointed to Cisco's $2.35 billion deal to purchase Duo Securityearlier this month as further proof of the company's commitment to security.

"This quarter we saw continuous strong momentum with revenue again accelerating and growing double digits year-over-year," Robbins said in regards to security revenues. "Our focus is on delivering cloud security solutions that provide ease of use, scalability and protect end users."

Cisco also moved the software ball downfield in its latest results as it transitions away from being a pure play hardware company. Cisco's application software business revenues were up by 10% to $1.34 billion in the quarter.