» Rick Wescott (left) has joined Redwood City, Calif.-based ThreatStream, a SaaS-based cybersecurity threat intelligence platform, as vice president of worldwide sales. W. Todd Helfrich also has joined the company as director of federal sales. Wescott will be responsible for making sure the sales organization meets its goals and also for sales enablement, sales forescasting and strengthening the sales purchasing process. Helfrich will build the federal business and help identify and close new federal opportunities. Both men have extensive experience in the security field, with Wescott most recently working at ArcSight and Helfrich most recently working at HP on the Department of Homeland Security account.

» Rapid7, a Boston-based security analytics software and services provider, has secured $30 million in additional funding from its investors, Bain Capital and Technology Crossover Ventures. The investment will help Rapid7 maximize on growth opportunities and build better enterprise security programs. The company will also continue to work on its core threat exposure management portfolio.

»SiteLock, a Scottsdale, Ariz-based provider of website security and PCI compliance, has partnered with GlobalSign, the security division of GMO Internet Group. GlobalSign, a identity services provider, will bundle SiteLock’s website security products with solutions for customers who purchase specific SSL certificated in certain markets, including Latin America. 

» Arbor Networks has appointed Sam Curry (left) as its new CTO and CSO. A well-regarded industry technologist holding 12 patents, with 12 more pending, Curry comes to Arbor from MicroStrategy and RSA. He will lead Arbor’s product strategy and innovation roadmap.

» iSIGHT Partners, a Dallas-based provider of cyberthreat intelligence for global enterprises, has closed a $30 million Series C equity-financing round with Bessemer Venture Partners, which has helped finance eight other cybersecurity firms. The investment will allow iSIGHT to expand its advanced threat intelligence to fight against cyberattacks. The funding also will aid in developing new integration partnerships and buildup the company’s sales and marketing engine.

» Brandon Hoffman has joined Somerset, N.J.- based Lumeta, a network situational awareness platform provider, as CTO. Hoffman will focus on business development and strategic relationships with technology integration partners, consulting/advisory firms, cloud service providers, managed security providers and federal systems integrators and channel partners. He will report to CEO Pat Donnellan, Previous to joining Lumeta, Hoffman worked as the federal CTO at RedSeal, where he helped define solutions and strategies to serve top government priorities.