The claim that an investigation into the cyber-security of Chinese buses has taken place is well-supported by multiple credible sources. In November 2025, the UK Department for Transport (DfT) and the National Cyber Security Centre (NCSC) launched an inquiry into whether Chinese-made Yutong electric buses operating in the UK could be remotely controlled or disabled by their manufacturer. This was prompted by an earlier investigation in Norway by Oslo's public transport operator Ruter, which found that Yutong buses could theoretically be "stopped or rendered inoperable" by the manufacturer due to the supplier having "direct digital access to each individual bus." Denmark also opened its own investigation following the Norwegian findings. The DfT confirmed publicly that it was "looking into the case and working closely with the UK's National Cyber Security Centre (NCSC) to understand the technical basis for the actions taken by the Norwegian and Danish authorities." A DfT spokesperson added: "The department takes security issues extremely seriously and works closely with the intelligence community to understand and mitigate potential risks." By January 2026, sources close to the UK investigation indicated that while experts agreed it was "technically possible" for the buses to be remotely disabled, no evidence had been found that this had actually happened. Approximately 700 Yutong buses were in operation across the UK at the time. The claim is accurate — an investigation into the cyber-security of Chinese buses did indeed take place, involving both UK authorities and earlier investigations in Norway and Denmark. Sources: - The Guardian, "UK transport and cyber-security chiefs investigate Chinese-made buses" (https://www.theguardian.com/uk-news/2025/nov/10/uk-transport-cyber-security-chiefs-investigate-chinese-made-buses) - The Telegraph, "Ministers to investigate 'kill switch' on Chinese buses" (https://www.telegraph.co.uk/business/2025/11/10/ministers-to-investigate-kill-switch-on-chinese-buses/) - The Register, "UK.gov probes security risks of Chinese electric buses" (https://www.theregister.com/security/2025/11/11/ukgov-probes-security-risks-of-chinese-electric-buses/1448008) - The Standard, "Hundreds of British buses have Chinese 'kill switch'" (https://www.standard.co.uk/news/world/british-buses-chinese-kill-switch-b1264854.html) - Metro, "Buses in Britain could be turned off by Chinese 'kill switch'" (https://metro.co.uk/2026/01/04/buses-britain-chinese-kill-switch-risk-remotely-disconnected-26059320/)