How Easily Can Hackers Plant Evidence? Cont'd

Editor’s Note: This article previously appeared in a different format as part of The Atlantic’s Notes section, retired in 2021.

A reader responds to that disquieting question:

I’m no computer expert, but I’ve read that a risk of using an unencrypted router for your home WiFi exposes you to someone parking outside your house (or in the next apartment) and poaching your WiFi to access and download material for their own purposes, such as child-porn, which could be traceable to passing through your system.

Indeed, there’s this cautionary tale: “Innocent Man Accused Of Child Pornography After Neighbor Pirates His WiFi.” There’s this quick guide from PC Mag to help protect you from the same fate. Another reader adds, “There was this case in England in 2003”:

Last October, local police knocked on his door, searched his home and seized his computer. They found no sign of pornography in his home but discovered 172 images of child pornography on the computer’s hard drive. They arrested Mr. Green.

This month, Mr. Green was acquitted in Exeter Crown Court after arguing that the material had been gathered without his knowledge by a rogue program created by hackers—a so-called Trojan horse—that had infected his PC, probably during innocent Internet surfing. Mr. Green, 45, is one of the first people to use this defense successfully.

As for the question of “receiving” illegal images, I am reminded of the 1967 action of the Yippies, mailing joints to 3,000 randomly chosen strangers, with a letter pointing out that receiving drugs was a federal crime, and they might as well smoke it.