And yet, as a software developer or security researcher or whatever, we can do the same thing; for example a milliseconds delay in SSH leading to the uncovering

And yet, as a software developer or security researcher or whatever, we can do the same thing; for example a milliseconds delay in SSH leading to the uncovering of a years-long ploy to undermine security (although the diff that introduced the issue flew under the radar), or recognising an issue from the sounds a modem or hard drive makes.