It is a quite a story to ponder on, and the reasons why someone would return that amount of money.
I guess as someone pointed out, getting it is one thing, but being able to cash that sum of dollars is quite another.
You don't just happen upon $26 million dollars. And it would difficult to explain to anyone how you obtained it

At least it's a positive none the less. But scams and hackers in this industry grow by the day, and security of all your crypto stuff should be of ultimate concern.
But good to hear ill-gotten gains have been returned.