As data centers and IT departments shift more resources into virtualization, splitting a single server into multiple nodes (or vice versa), security problems and side effects from existing security software are beginning to pop up.

Altor Networks is a company that is working to streamline the process of adding virtualization for companies by defining how firewalls work between virtual and physical machines. It also helps protect against unwanted intruders.

The $6 million funding, Altor’s first, was provided by Accel Partners and Foundation Capital, according to VentureWire. The company is based in Redwood City, Calif.

VentureBeat's mission is to be a digital town square for technical decision-makers to gain knowledge about transformative enterprise technology and transact. Learn more about membership.