EMC said today that it has acquired NetWitness, which provides network security software.

The purchase, which won't impact EMC's revenue or earnings in 2011, was closed on April 1. NetWitness will be included in EMC's RSA unit.

Terms of the deal weren't disclosed.

With the acquisition, EMC will delve deeper into network security monitoring and analysis. NetWitness aims to spot everything from insider threats to target malware to data leakage.

On the product front, NetWitness will become part of RSA's advanced security management lineup, which includes EnVision, RSA's Data Loss Prevention Suite and CyberCrime Intelligence service.

The story "EMC acquires NetWitness, combines with RSA" was originally posted at ZDNet's Between the Lines.