Veritas Capital is buying BeyondTrust from PE and venture capital firm Insight Venture Partners.

BeyondTrust, headquartered in Phoenix, provides cyber security software and services to companies and governments. Terms of the deal were not disclosed.

Veritas plans to use the company as its cyber security platform. The firm invests in aerospace, education, communications, energy, government services, health care, national security and technology companies. The private equity firm has also invested in Thomson Healthcare, which it bought in 2012 for $1.25 billion. 

Veritas' other investments include radio frequency circuit provider Aeroflex Holding Corp. and parts manufacturing Anaren Inc.

New York-based Insight Venture invests mainly in software, e-copmmerce, Internet and data-services companies.

Evercore acted as BeyondTrust's financial adviser on the deal.

Companies are bolstering their cyber-security efforts now more than ever as a means to avoid hacking. In the wake of a recent breach in which racy celebrity photos were leaked, cyber security experts and mobile developers have called out inadequacies in many companies and cloud-security services. Dealmakers have been addressing cyber security concerns for years. 

Other cyber security acquisitions include Lockheed Martin's (NYSE: LMT) March acquisition of Industrial Defender, and F5's September 2013 purchase of Versafe Ltd.