I found some unauthorized transactions in my Coinbase Pro account.  I reported to Coinbase and  went through the recover process.  They said my computer was compromised, or someone else  used my computer to place the orders.  I went through due diligence to rule out all those. 

Coinbase does not show any history of orders placed.  They only show history of orders filled. I wish there was a way to prove that the orders were NOT placed by me.