Frank, >Many utilities use licensed spectrum >UHF modems for control and monitoring.
I have found the majority of SCADA and DCS systems I referred to rely on UHF for HMI (Human Machine Interface). Yay for public information on corporate websites, this was found on one of the largest distributors for SCADA and DCS website. > Why would you doubt this? Utilities use WiFi. Your right, I should have phrased that differently. Cheers, Geoff Shively, CHO PivX Solutions, LLC Are You Secure? http://www.pivx.com ----- Original Message ----- From: "Frank Keeney" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, August 15, 2003 6:20 PM Subject: Re: [SOCALWUG] Power outages related to DCOM Worm, WiFi accessible? > > I know for a fact that several utilities use WiFi in their networks. Some > for their control systems and others only for back office. Like any other > businesses, wireless has become another perimeter to be assessed and > protected. > > WiFi is not the only vulnerbility. Many utilities use licensed spectrum > UHF modems for control and monitoring. AFAIK these have no encryption and > limited or no access control. > > On Fri, 15 Aug 2003, Geoff Shively wrote: > > > Yes, I doubt that a major system was wifi enabled but I had to ask. > > Why would you doubt this? Utilities use WiFi. > > > Frank > > > > >
