Raytheon to buy cybersecurity firm Websense in $1.9 billion deal

One of Raytheon's Integrated Defense buildings is seen in San Diego, California January 20, 2011.

/Mike Blake

- U.S. arms maker Raytheon Co (RTN.N) said it would buy cybersecurity provider Websense Inc from private equity firm Vista Equity Partners LLC for $1.9 billion, including debt. Raytheon said it would combine its cybersecurity unit, valued at $400 million, with Websense. Vista Equity will then invest about $335 million for a 19.7 percent equity stake in the new company, Raytheon said. (Reporting by Sagarika Jaisinghani in Bengaluru)