Disable showing password input characters with a physical keyboard? I'm using a Google Nexus 7 2013 LTE running CyanogenMod 11.0M6.

When I use a physical bluetooth keyboard to type in password input fields, Android still displays one character at a time, which is a bit of a security concern. 

Is there a way to disable this either globally (ie: even for soft keyboards) or specifically for external keyboards so that password characters are never shown as they are input?
In Android Settings, go to Security and uncheck "Make Passwords Visible." This will cause all password characters to be obfuscated, even as you type. It is a global option, so there is no way to set it for just one input method.