Virtual keyloggers were an easy-to-implement solution to malware that recorded keystrokes from the keyboard and hardware keyloggers.

But the keylogger software developers quickly adjusted to this new technique (sometimes by simply taking a screenshot focused around where the mouse clicks).

In the end, it is not clear that a virtual keyboard provided any broad benefit. It would certainly defeat a hardware keylogger installed on your keyboard, but that's not the likely threat.

Given that keylogging software expects to also capture virtual keyboards, there is little benefit to maintaining this technology in the broad, likely scenario.

Tests have been done on the effectiveness of virtual keyboards:

https://www.raymond.cc/blog/how-to-beat-keyloggers-to-protect-your-identity/

Virtual keyboards were an easy-to-implement solution to malware that recorded keystrokes from the keyboard and hardware keyloggers.

But the keylogger software developers quickly adjusted to this new technique (sometimes by simply taking a screenshot focused around where the mouse clicks).

In the end, it is not clear that a virtual keyboard provided any broad benefit. It would certainly defeat a hardware keylogger installed on your keyboard, but that's not the likely threat.

Given that keylogging software expects to also capture virtual keyboards, there is little benefit to maintaining this technology in the broad, likely scenario.

Tests have been done on the effectiveness of virtual keyboards:

https://www.raymond.cc/blog/how-to-beat-keyloggers-to-protect-your-identity/