Well, it looks like even wired keyboards aren't safe from anonymous eavesdropping, as Switzerland's EPFL have demonstrated that they could monitor every keystroke from various wired keyboards:
We always knew those electromagnetic emanations would amount to no good, and now here they go ruining any shred of privacy we once thought to possess. Some folks from the Security and Cryptography Lab at Switzerland's EPFL have managed to eavesdrop on the electromagnetic radiation shot off by shoddy wired keyboards with every keystroke. They've found four different ways to listen in, including one previously-published general vulnerability, on eleven keyboard models ranging from 2001 to 2008, with PS/2, USB and laptop keyboards all falling to at least one of the four attacks. The attack works through walls, as far as 65 feet away, and analyzes a wide swath of electromagnetic spectrum to get its results. With wireless keyboards already feeling the sting of hackers, it's probably fair to say that no one is safe, and that cave bunkers far, far away from civilization are pretty much our only hope now. Videos of the attacks are after the break.
Wow, like any1 could be interested in my keyboard XP some essays, password to RO? O well, new security threat didn't really impress me XP
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A lot of common issues with wireless keyboards are due to RF/2.4 GHz radio interference. If you live in an area with a lot of 2.4 GHz activity (wireless 802.11b/a/g/n Internet, BlueTooth devices, etc.), there's not a whole lot that you can do except by changing wireless channels (if your device supports it).
