Sofia Traffic System Vulnerabilities Raise Safety Concerns After Near-Miss Incident
A potential security flaw in Sofia’s traffic light control system has sparked debate after a near-miss accident involving a tram and vehicles with special escort privileges. The incident, detailed by the mayor of the Sredets region, Traicho Traikov, highlights the risk of unauthorized manipulation of traffic signals and raises questions about the safety of public transportation.
The controversy began on November 10, 2025, when Traikov recounted an incident on social media. While riding a tram near Slaveykov Square, the vehicle was forced to brake suddenly when approaching a red light. Simultaneously, a convoy of vehicles – a jeep and a Mercedes – typically used by high-ranking government officials, proceeded through the intersection despite the tram’s signal. According to Traikov, the traffic light appeared to have been altered to allow the convoy to bypass standard traffic regulations.
“I look at the traffic light – it’s red for us in the tram,” Traikov wrote.”At the same moment a pair of special mode fighter jets flew in front of us… The traffic light had given way to the tram in seconds, but the pilot car had clicked green for themselves, without much ceremony.”
The incident prompted Traikov to file a report with the relevant authorities, expressing concern over the potential for accidents and the ease with wich the system could be compromised. He revealed that approximately 30 devices capable of overriding traffic signals have been distributed among various users, with a limited number held by the national Security Service (NSO). However, a significant vulnerability exists: these devices are reportedly “not that difficult to clone.”
This ease of replication presents a serious security risk, potentially allowing unauthorized individuals to manipulate traffic flow for malicious purposes.traikov believes a modernization of the system is crucial. “I think that these devices, if they continue to exist, should be replaced by some more reliable and smart version that records each specific use case,” he stated. He further emphasized the need for a “strict protocol” governing data collection and regular audits to ensure accountability and prevent abuse.
the situation underscores a growing concern about the security of critical infrastructure in urban environments. While the ability to prioritize emergency vehicles and official convoys is essential, the current system appears to lack sufficient safeguards against misuse. A comprehensive review of traffic management protocols and investment in more secure technologies are likely necessary to mitigate the risks and ensure the safety of all road users in Sofia.
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Here’s a breakdown answering the “Why, Who, What, and How” questions, turning the update into a substantive news report:
Why: The incident and subsequent concerns stem from a potential security flaw in Sofia’s traffic light control system, raising fears of accidents and malicious manipulation of traffic flow.
Who: Traicho Traikov, the mayor of the Sredets region, brought the issue to light after experiencing a near-miss incident. The National Security Service (NSO) holds some of the override devices, and an unknown number of other users also possess them. High-ranking government officials are the typical users of the vehicles with override privileges.
What: A near-miss accident occurred on November 10, 2025, when a tram was forced to brake for a red light while a convoy of government vehicles bypassed the signal using an override device. Traikov reported the incident and revealed the existence of approximately 30 override devices, which are reportedly easily cloned.
How did it end? The incident prompted Traikov to file a report with authorities, advocating for a system modernization. He called for devices that record each use, a strict data protocol, and regular audits. As of this
