COINBASE Funds Stolen - Bitcoin Fraud New York, San Francisco New York, Californai

I was contacted by someone knowledgable who said account had malicious activity.  He called from the number posted from customer service, 805 372 0039.   I allowed him to enter my account (no warning apparent that they NEVER call)  He said he needed some tech help as the code he was trying to  send did not come to me. I gave him an authenticator code. 

The next day, the coin was sent to an address and the account disabled.  that was june 9..on friday, june 12, received a txt saying codes were changed and did I do this?  This should have happened before the transfer was made,  Indeed, the ceo of  akami has stated that giving the key to the "house' should not allow anyone a key  to the rooms, and such lack of security  was no security. 

Coinbase has disabled my account, and not answered me, giving time to the criminal to finish taking the money.  I would like others to contact me.  Don't know if coinbase let someone know I had an account.  the person losing 500k with no response by the ceo gives me pause as they are criminal..I would like to have a contact from anyone also scammmed..thanks.