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No Longer Secure

U.S. Intelligence Warns Against Using Certain Routers

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The FBI is currently warning about Linksys routers (stock image). Photo: Getty Images
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August 1, 2025, 1:38 pm | Read time: 2 minutes

When old hardware no longer receives updates, it becomes a security risk. That’s why even the FBI is now warning about Linksys routers.

Many modern devices today can connect to the internet and not only receive new features but also important security updates. Anything connected is constantly at risk of being attacked by cybercriminals. If such updates eventually stop, it becomes problematic. This applies to laptops, smartphones, and routers. Numerous Linksys routers are now affected, prompting the FBI to issue a warning.

Router Protection Is Often Neglected by Users

While it’s easier to keep track of important security updates on smartphones (such as through automatic updates that interrupt usage), it’s different with routers. Manufacturers generally provide regular updates for current models. However, their installation often occurs in the background, and many users may not be aware whether their device is still receiving them.

This situation poses a significant risk that criminals can exploit. According to the FBI, several older Linksys routers are particularly vulnerable due to a lack of updates. Additionally, there is reportedly malware circulating that is router-based and therefore not detected by antivirus software.

More on the topic

These Linksys Routers Are Warned Against by the FBI

If you have one of the following routers, you should act quickly:

  • E1200
  • E2500
  • E1000
  • E4200
  • E1500
  • E300
  • E3200
  • WRT320N
  • E1550
  • WRT610N
  • E100
  • M10
  • WRT310N

What Affected Users Should Do

As the U.S. intelligence agency explains, the perpetrators do not simply attack Linksys routers remotely. They also offer services like 5Socks and Anyproxy on the dark web, allowing others to access the vulnerable devices. At the same time, these services help them conceal their identity and location.

Also of interest: Manufacturer Advises Disposing of Their Routers

To avoid an attack, the FBI recommends purchasing a new Linksys router that still receives security updates. Alternatively, you should disable remote access and restart the device. It’s also advised to check whether the router is part of your network infrastructure.

It’s not the first time the manufacturer’s devices have been criticized. Back in 2019, a serious security vulnerability in Linksys routers came to light. TECHBOOK inquired how the company informs its customers about the issue and what additional measures can be taken. However, a response has yet to be received.

This article is a machine translation of the original German version of TECHBOOK and has been reviewed for accuracy and quality by a native speaker. For feedback, please contact us at info@techbook.de.

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