Trustwave today announced it has entered into a deal to acquire M86 Security for an undisclosed price. Both firms are privately held, and the deal is expected to be concluded in a matter of weeks.ROUNDUP: Top Tech M&A deals of 2012In buying M86 Security, Trustwave, which has been steadily expanding its own line of products and services concentrated on compliance and data security, gains a suite of products focused on Web and email security. The two companies today said they intend to combine their threat-research divisions so that M86 Security labs will become part of Trustwave SpiderLabs.Robert McCullen, chairman, CEO and president of Trustwave, said the acquisition of M86 Security will help his firm in "delivering advanced anti-malware technology through the cloud and our managed services." Trustwave said it intends to add the M86 Secure Web Gateway to the portfolio of services available in the Trustwave Managed Security Services. The company also said it will integrate M86 Security products into Trustwave's cloud-based TrustKeeper portal.Ellen Messmer is senior editor at Network World, an IDG publication and website, where she covers news and technology trends related to information security.Read more about wide area network in Network World's Wide Area Network section.