You only have access to the applicant-facing side of the software, one that will dispense you an Employ ID, an application template, and will enable you to track the status of your application. To prevent people from abusing the system and finding workarounds, employers need to apply to be given an employer license that lets them use all the convenient filtering tools. Most tech companies have already bought one, as did all the large companies. Places like individual McDonald's franchises use their greater company's license. It's not a completely watertight system, but monitoring is just stringent enough to make your detailed application info inaccessible for nearly everyone. Maybe if you have the right credentials, or if you manage to fool the megacorp into believing that you're an actual employer, it's possible.

You're assuming the software gives the same response to every user. Or even gives the same response twice. And if it does .. how do you correct it?

Worker blacklists have been a real problem in a few places: https://www.bbc.com/news/business-36242312

Why would you have access to the software?

Do you currently run the various automated resume parsing software that employers use? I mean - do you even know what the software is? Like even a name or something? No?

Wrong question. What would enable you to run the same check?