Cyber Incident Victim: MBC
Date:
Apr 2018
Location:
United States of America
Summary
Unknown perpetrators hacked a highway sign in Arizona, displaying "Hail Hitler" text, which was reported by a driver and confirmed by local authorities. The Pinal County Roads Department covered the compromised sign after failing to disable it due to password protection, requiring intervention by the sign's owner, MBC, to remove the message. This incident aligns with prior unauthorized modifications of traffic signs, including politically charged statements against law enforcement, public officials, and former U.S. presidents, as well as displays of explicit content, highlighting recurring vulnerabilities in public signage systems.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
On April 30, 2018, at approximately 2:30 AM, an electronic highway sign owned by MBC in Pinal County, Arizona, was illegally accessed and defaced with the text "Hail Hitler." A passing motorist observed the altered message and reported it to the Pinal County Sheriff’s Office (PCSO). Law enforcement responded to the scene but could not immediately disable the compromised sign due to password protection on the device controlling the display. The Pinal County Roads Department was subsequently contacted to physically cover the sign with an opaque material to prevent further public exposure while awaiting specialized assistance from MBC, the sign’s operator and owner. PCSO spokesperson Navideh Forghani confirmed the incident to local media, acknowledging that multiple drivers had seen the unauthorized message before mitigation efforts began.
The incident required coordinated containment measures, as first responders lacked administrative access to MBC’s proprietary system. The Roads Department’s manual covering of the sign served as an interim solution until MBC personnel could regain control and restore the original messaging. Forghani emphasized the visibility of the defacement but did not quantify the number of affected motorists or duration of exposure. No technical details regarding the intrusion method or perpetrator identification were disclosed by authorities or MBC. Historical context from similar incidents—such as previous highway sign hacks displaying political messages—was noted in media reports, though this specific event marked the first publicly documented compromise of an MBC-operated sign with explicitly offensive content. The resolution relied entirely on MBC’s intervention to terminate the unauthorized display.