Johnny in a sentence as a noun

But not being told that my iDevice will log my every move and leave this data open to the next johnny-come-lately to get his hands on my device?

The reason for this is that you can google ranges of numbers, and people a couple of years ago were using this feature to find credit card numbers that were posted online, eg searching for 4000000000000000..4999999999999999It was around the time that johnny's google hacking page became popular, iirc.

Johnny definitions

noun

`Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback' derived from their grey Confederate uniforms

See also: Rebel Johnny greyback