{keyword}' Order By 1-- Hfdk [ Firefox Premium ]

These are "comment" markers. They tell the computer to ignore everything else in the original code, effectively silencing any security alarms that were supposed to follow. The "Little Bobby Tables" Legacy

This is used to "break out" of a predefined search box, telling the database, "Stop looking for the keyword and start listening to my new command." {KEYWORD}' ORDER BY 1-- hFdK

Here is a look at the story behind that syntax and why it remains such a legendary piece of code. The Anatomy of an Attack These are "comment" markers

The phrase is a precision tool for a digital lockpicker. telling the database

It’s a reminder that in the world of code, A single stray apostrophe can be the difference between a simple search and a total system takeover.