IBM buys Resilient Systems, third local security acquisition since 2011

Cybersecurity Illo

IBM is buying Cambridge-based Resilient Systems, a developer of software that helps track and respond to digital security breaches, for an undisclosed price.

This is IBM’s third acquisition of a Boston-area security company in the past decade. Big Blue bought Waltham’s Q1 Labs for an unknown price in 2011 and paid a reported $800 million for  Trusteer in 2013.

Xconomy, citing an anonymous source, reported last week that IBM was paying more than $100 million for Resilient Systems, which was founded in 2010 under the name Co3 Systems. A year ago, Resilient told us it had reached nearly $10 million in annual revenue.

IBM also announced a business partnership with Waltham’s Carbon Black on Monday, adding that company’s security software to its lineup of security products and services.

IBM’s security division, which recorded about $2 billion in sales last year, is headquartered in Cambridge. IBM said it plans to keep Resilient Systems’ 100 employees.

“You acquire technology, but you really want to acquire people,” IBM Security general manager Marc van Zadelhoff said in an interview with Reuters.

Resilient Systems’ software helps cybersecurity workers respond to digital threats, such as malware attacks on a company’s IT system, by giving them a centralized place to research and counteract those breaches.

Cybersecurity has been a booming sector recently for startups and their investors in the Boston area, spurred by high-profile hacking attacks such as the 2014 data breach at a company that supplied background checks to the federal government.

Boston-based cybersecurity software company Rapid7 was the region’s only tech-sector IPO in 2015.