Innovis is a weird one. It’s much less well known to many people than the ‘big three’. But regardless, it’s used by some pretty big companies, and its origin stems from the likes of Fannie Mae and Freddie Mac. And some of their services/interface are comically outdated, which to me makes it potentially prone to abuse. And that alone warrants giving it some attention.
Your debit score is important because that’s what most financial institutions check against when you set up an account with them. They typically don’t use credit scores for account eligibility. So debit scores (which are almost exclusively controlled by FIS) can be susceptible to abuse from that angle and in that industry.
ETA: Yes, the response time for the credit bureaus is pretty fast. I recommend setting up a free account with each of Equifax, Experian, and Trans Union. They will try to trick you into the paid account during the account creation process, so watch where you click. But their free accounts are decent and get the job done. Plus they make it easier to freeze/unfreeze your credit score than using no account. Innovis’ process is easy too, and fairly quick, but it’s very old-school.
Go back in time and do something to prevent Vasily Aleksandrovich Arkhipov from becoming the Executive Officer on the B-59 Soviet nuclear sub in October 1962. He’s the guy who talked the Captain and the Political Officer out of launching the nukes when they thought they were being attacked by the US Navy during the Cuban Missile Crisis. His persuasiveness is generally considered to have avoided WWIII from starting then.