Hardware

At first I thought this was a curious proof of concept exploit that is fun to read about, but not really relevant.

This kind of compromise doesn't require elaborate malware installations. Any application, such as a game or creative software, that legitimately requests high-frequency mouse data could be exploited if compromised. Once captured, the data can be transmitted off-site for analysis, allowing sensitive conversations to be intercepted without any obvious sign to the victim.

But lo and behold, turns out this method is actually not just purely theoretical. Sure, you would have deploy a malware application or exploit another app, but this is still very much within the realms of viability.