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Chinese-made routers found with secret backdoor to China

WireByte Staff · August 7, 2026

A security flaw in Zbtlink-made routers allows them to ping servers in China and grant full root access without authentication. The discovery comes as the FCC banned new foreign-made routers in the US, citing national security concerns. The routers are sold through US retailers like Amazon and have been on the market for years.

Key points

  • Zbtlink-made routers, sold under Wiflyer branding, have a security flaw that allows them to ping servers in China.
  • The routers grant full root access without authentication, posing a significant security risk.
  • The discovery comes as the FCC banned new foreign-made routers in the US, citing national security concerns.
  • The routers are sold through US retailers like Amazon and have been on the market for years.
  • The security flaw was discovered by VulnCheck, a security analysis firm.

A recent report has highlighted a significant security flaw in Zbtlink-made routers, which are sold under both Zbtlink and Wiflyer branding. The routers have been found to ping servers in China, which raises concerns about the potential for data breaches and other security risks.

The security flaw was discovered by VulnCheck, a security analysis firm. According to their findings, the routers grant full root access without authentication, which means that anyone with access to the router can gain control over it and potentially access sensitive data.

The discovery of this security flaw comes as the FCC banned new foreign-made routers in the US, citing national security concerns. The ban was put in place to prevent the potential for data breaches and other security risks associated with foreign-made routers.

The Zbtlink-made routers are sold through US retailers like Amazon and have been on the market for years. While they may not be a well-known brand, they are still widely available and have likely been purchased by many consumers.

The security flaw in these routers highlights the importance of ensuring the security of our digital infrastructure. As we become increasingly reliant on technology, it is essential that we take steps to protect ourselves from potential security risks. The discovery of this flaw serves as a reminder of the need for vigilance and caution when it comes to the security of our devices and networks.

Sources

WireByte Staff — Editorial Team

The WireByte editorial team synthesises technology news from multiple primary sources, verifies the facts, and links every source. Articles are produced with AI assistance and reviewed under our editorial policy.