We were surprised when we learned that electronic road signs are easily hackable. This is because the usually locked access panel is often left unprotected. Even more surprising is that the site iHacked tells you exactly how it is done with step by step instructions. They then caution,

*** WARNING - YOU SHOULD NEVER TAMPER WITH THESE SIGNS ***

Hmm. Isn’t that a bit like posting details on how to build a bomb and then saying that it is for informational use only?