Last year the South Carolina Department of Revenue found that a hacker had used a “spear-phishing” attack to install at least 33 unique pieces of malicious software and utilities on the department’s servers to steal financial data. In another headline-grabbing security breach a year ago, hackers from Eastern Europe stole the Social Security numbers of as many as 280,000 people from Utah Department of Health databases, an incident that quickly forced state CIO Steve Fletcher’s resignation. The Alexandria, Va.-based company is one of a new generation of network threat detection and response companies that have sprung up over the last few years to complement traditional anti-virus and data loss prevention approaches that — although still necessary — are inadequate to cope with new types of targeted attacks. Indeed, a post-breach investigation of Chinese hackers’ cyberattack last year on The New York Times’ computer systems uncovered that anti-virus software found only one of the 45 different pieces of malware planted on The Times’ systems during a three-month period.