Syss.de researchers have shown that wireless keyboards and mice are trivial to hack with cheap off the shelf hardware...even those that are 'secured' with AES. "https://www.theregister.co.uk/2016/10/24/hackers_pop_top_secure_wireless_keyboard_and_mouse_kits_gain_rce/" "https://www.lifehacker.com.au/2016/10/your-wireless-keyboard-isnt-safe-even-with-aes-encryption/" Anything that is entered can be read (including passwords) and replay attacks allow hacker to take control of the machine. Mouse hack can be used with onscreen keyboard to type any data. I miss the convenience of wireless, but because of lack of security I don't use them.