Fake Base Stations Detected in Tokyo and Osaka, Expert Warns of Fraud Risk

Apr 19, 2025 | News On Japan

TOKYO - Concerns are mounting over the discovery of illegal radio signals believed to originate from "fake base stations" mimicking cell towers in Tokyo and Osaka, with experts warning of the risk of personal data theft and potential fraud.

At a press conference following a cabinet meeting on April 15th, Internal Affairs and Communications Minister Seiichiro Murakami addressed the issue.

Murakami said, "I am aware that there is discussion on social media about illegal transmissions from fake base stations being detected in urban areas. We are also aware of incidents of signal interference affecting mobile phone services in and around Tokyo. Relevant authorities are currently working together to respond."

These fake base stations can disrupt legitimate communications and pose a significant threat to users.

According to IT journalist Tomoko Suzuki, "These fake base stations are being used by individuals attempting to commit fraud. By using fake towers, they can bypass normal carrier restrictions and deliver short messages to users that would otherwise be blocked."

When a mobile phone connects to one of these unauthorized signals, users may receive scam messages. Clicking on such messages and entering personal information could lead to sensitive data being stolen.

Depending on the model, some phones are more susceptible to connecting with these illegal signals, making vigilance especially important.

A man in his 30s said, "I tend to open short messages without thinking. These scams are becoming more common—it’s scary."

A teenager added, "There are so many people in entertainment districts, especially young people. It’s frightening to think the number of victims could grow."

The Ministry of Internal Affairs and Communications is continuing to coordinate with relevant agencies, while major mobile carriers have also stated they are aware of suspicious activity and are currently investigating the matter.

Source: TBS

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