There have been some recent news articles about threats to Android devices from malware/viruses/trojans - some of which found their way into the official Market. There is also a warning about infected apps in Chinese app stores and you never know where those might end up. My tablet is from China and came with a bunch of preinstalled apps as does the unofficial firmware I'm running now and there's no way for me to know where those apps originally came from. I've also side-loaded a number of apps I've downloaded from various places, some of which have been hacked to run on my hardware but you never know if some malware came along for the ride or if the hack left a security hole. I've also been connected to a number of public, unsecured networks with my tablet. Suffice it to say I thought it was time to install a decent anti-virus on my tablet and scan it. I went with AVG Antivirus free version downloaded from the official Market. This is clearly intended for locked-down devices, not those of us who hack and develop with our devices. My tablet is rooted, I have the Superuser app installed, and connect via ADB so often I leave USB Debugging turned on all the time. AVG sees ALL of these as threats! It will see Superuser.apk as an "infected" app and prompts you to uninstall it! Thankfully it isn't, it is likely flagged because it can elevate the privileges other apps. Being rooted also means that my tablet is generally running with elevated privileges, so that gets flagged as a security risk too under Settings. I'm not really sure why "USB Debugging" also gets flagged there, maybe because it can provide a way to unlock the phone without knowing the unlock pattern? Once I told it to "Ignore" those three things it rescanned and didn't find anything else, which frankly surprises me but I'll take the good news.