There is basically no point. When you freeze your credit, you will be assigned a new PIN number. The number is just the time and date of when you set the freeze in month/day/year/24h format, I shit you not.
https://pbs.twimg.com/media/DJUGlMfVYAAOs9i.jpg
They're already being sued for $70 billion, and this is their plan to secure accounts after the breach.
edit: This has apparently been their policy for at least the last 10 years.
That is insanely bad lol. I froze my credit with equifax a few years ago, and I just compared the document date with the pin and....yep it's a match. I guess that's what you get when your CISO is a diversity hire with no computer science or engineering background.