The new user sleeps next to Kaufman's MacBook. The Oakland Police Department is still investigating the crime to determine who stole the computer. Photo: Joshua Kaufman/Hidden App

Yet another stolen laptop has been recovered, thanks to a public broadcast of digital information from the computer in question — including photos of its new user.

On Tuesday night, software programmer Joshua Kaufman got his MacBook back. It had been stolen two months prior. The recovery was thanks to the blog Kaufman started called ThisGuyHasMyMacBook, which was populated with screenshots and pictures Kaufman...