The probability of a USB wireless mouse, purchased new, and made by any major maker being compromised is so close to zero as to be not worth considering. It really is that simple.
Agree with that 100%.
I would avoid buying used, or shady grey market USB devices. I only contributed to this discussion because some early responses referred to the memory (or lack of) in the mouse, or the mouse software. Just wanted to add the perspective that it can be the USB controller in the device that can be compromised, not the mouse itself.
But even after the purchase of a 'clean' USB device, vulnerable USB firmware could still be tampered with if you plugged the mouse into a compromised computer. This is just an educational discussion, not a 'sky is falling' type of rant. Anybody interested in the field of computer security should at least be curious about these things. I have over 35+ years experience as an IT professional, and it is the discovery of little details such as this that continue to remind me of the things we have yet to learn. Not all of it is immediately useful, or practical to know in a day to day manner. But knowing this stuff surely won't dumb you down or fill up your brain cells.
In fact I am running HitmanPro.Alert, by Sophos, which has a dedicated system hardening function just for "BadUSB' to stop malicious USB devices. So it is not a completely unknown vector. Sophos has also included the HitmanPro technologies into their next gen Intercept X enterprise endpoint protection. It is all about risk reduction.
Edited by zzz00m, 06 March 2018 - 09:19 AM.