Can't find my Mac last location even if my Mac was online only for half an hour?
It depends how smart the 'finder' was.

If they were fully aware of how to deal with a stolen ermm... borrowed computer, &amp; knew to take it well away from any potential location-capable resource, then it could have been wiped with no further data exchange &amp; therefore no Find My Mac information.

Unlike an iPhone/iPad. a computer is not a completely locked-down environment, unless the drive is encrypted with FileVault &amp; a firmware password set - though you still need to have enabled Find My Mac.