This year, I've had the UK variously send me someone else's court summons, someone else's tax documentation (not address error - just inadvertently included as attatchments on emails to me).
I've had portugal disclose property taxation information on any subject to me, through a simple enumeration hole.
And last week I had brazil's ministry of agriculture send me details on other peoples' livestock shipments.
Our information environment is unbelievably porous. There would be no secrets from an unshackled AI.