Storage: Despite an abundance of dark fiber in many metropolitan areas, most companies pay too much for fiber optics connections,” Mario Apicella reports. That’s where XKL comes into play. The company, founded by Len Bosack, who along with his wife founded Cisco, think it can help companies tap that buried dark fiber treasure to the tune of significant cost savings with its DXM Optical Transport System. Hunting down dark fiber. “A survey of DXM’s specs leaves me both intrigued and a little circumspect.” Security: Sometimes even old applications are plagued with new vulnerabilities — and making sure you have the latest patches is not enough. “You have to check and see if the older, vulnerable versions of the software you patched aren’t still installed and available,” points out Roger Grimes in this installment of Security Advisor. Part of the problem is that many patch management tools only check the latest installed software versions. It’s not just customers that are responsible, either. “Software vendors, if you don’t uninstall the previous version, let us know. Better yet, give us the choice during the upgrade to keep or kill the old version. You’ll get bonus points if you don’t try to sneak unrelated third-party software into your patching process.”Video: IP telephony, chip supergeek events, cult computer games. They’re all in The Week Ahead with Gina Smith. And a startup called Workday makes a splash. Watch it here. From the Test Center: The great Office Server smorgasbord is back. Part 2, MOSSing up Groove Server, stars none other than Office Groove 2007, which becomes more robust when working in conjunction with Office SharePoint Server 2007, write Oliver Rist and Brian Chee. “Enabling MOSS (Microsoft Office SharePoint Server) behind your Groove population allows Groove users to manage Groove spaces by team, as well as make SharePoint’s document libraries instantly accessible as Groove data — with the same security. Try that in a traditional IT environment and you’re spending quality time with your IT staff.” Technology Industry