There’s a 2013 Defcon talk called Hijacking the Outdoor Digital Billboard. You tube “hacking billboards” you’ll see lots of hijacked digital billboards. There are creative, intelligent, sketchy people with way too much time on their hands who would love to hack your digital billboards. Here are some billboard vulnerabilities identified in the Defcon talk.
- No locks on a computer interface box at the base of your billboard or a Commercial Masterlock protecting the console at the base of the billboard. You should have heard the audience laugh when this was mentioned. Masterlocks can be picked.
- No fences around a digital billboard.
- Security cameras which point up at your sign but not down at the base of the sign.
- Billboard sales people who are glad to answer questions about uploading information and security procedures when a caller says “I’m a college student majoring in marketing” or when a caller says “I’m interested in buying space on your sign.”