McAfee to buy Reconnex. The security firm expands its range of data protection appliances and software with the acquisition, and plans to roll the products into its McAfee Adaptive Protection brand. Tools for managing power ship with most computers these days, but not enough people actually put them to use — meaning there is a tremendous opportunity to improve energy efficiency. And PC makers, of course, could do more to help. PC owners urged to manage power use and save money. Security experts at the Black Hat/Defcon conference next week will reveal their inner hackers and show off malware and attacks designed to pick apart the Web, wireless LANs, routers, desktop software, and more. Intel, meanwhile, plots a Web 2.0 play with Facebook. By supplying processors and programming tools to power Facebook servers, the chipmaker aims to gain traction in the Web 2.0 market. And continuing the healthy discussion on the value of solid state drives, the question arises: Are enterprise SSDs already doomed to a marginal presence, even before reaching their prime? Debating the merits of SSDs, part two. Security