I&#x27;m sure that Australian Federal Police and Victoria law enforcement would be able to exercise search warrants on Fastmail&#x27;s servers if they needed to.<p>Since you&#x27;re in Tennessee (and thus a U.S. Person), you&#x27;re actually ineligible for collection under FAA 702.  Gmail&#x2F;Hotmail&#x2F;Yahoo, etc. would actually be the safest place for your information.<p>Of course that assumes that you believe the NSA follows U.S. law.  If you don&#x27;t have that assumption, that also implies that the NSA wouldn&#x27;t respect Australian sovereignty enough to keep it from infiltrating Fastmail&#x27;s servers.<p>I&#x27;m saying this to illustrate that there&#x27;s no silver bullet for secure transmission and storage of information.