Yes, the security of the traditional financial system is largely based around the ability to reverse transactions. One time I was transferring money from one o

Yes, the security of the traditional financial system is largely based around the ability to reverse transactions. One time I was transferring money from one of my accounts into a trading institution. Except by mistake, I was looking at one of my parents' checks instead of my own. I typed the wrong account number. Only after my parents noticed the unexplained withdrawal of a five figure sum, and called the bank to reverse it, was the mistake detected.