Symantec purchases company in First Round portfolio

Symantec Corp, maker of Norton anti-virus software, has acquired Mi5 Networks, provider of super-fast Web security products. While Mi5 is based on that other, less awesome coast, their largest financier, First Round Capital, has offices in West Conshohocken. In a phone interview, Lead Partner Josh Kopelman confirmed the deal but said the details of the transaction are remaining private at this time. CNET is reporting that it was an all-cash exchange. Symantec will integrate the company’s technology that protects users from Web-based threats into its existing software platform by later this year.