HomeWinBuzzer NewsMicrosoft Defender Stops Flagging Tor Browser as Malware

Microsoft Defender Stops Flagging Tor Browser as Malware

Windows Defender falsely flagged Tor Browser as malware, causing concern among users. Microsoft has removed the detection and provided instructions for users to resolve the issue.


Recently, the Microsoft Defender program erroneously flagged versions of the Tor Browser as potential threats, creating concern among its users. The issue was rooted in the perception of the tor.exe file, updated recently, as a possible Trojan.

The alarm proved to be a false positive, a technical glitch where benign software is mistakenly identified as malicious by the system. To address the error, the Tor Browser team reached out to , who then reviewed the submitted files.

Microsoft confirmed that the flagged files “do not fit our definitions of malware or unwanted applications” and consequently, the detection was removed. For users who still encountered this false positive, Microsoft has provided a detailed set of instructions to apply updates and clear the earlier flags. For individuals willing to implement the updates manually, the latest definitions are made readily available by Microsoft.

's misstep also had repercussions on Virus Total, an online service that aggregates many antivirus products and online scan engines to check for viruses, which had detected similar warnings.

User Feedback and Tor Response

While the anomaly was eventually solved, Microsoft Defender users did express disappointment that a preliminary check, like one conducted through Virus Total, was not implemented. They believed such a standard safety practice could have anticipated and avoided such a scenario.

Reacting to the criticisms, a representative from Tor clarified that the organization currently has no standard procedure for uploading files to Virus Total prior to release. However, the latest database (version 1.397.1910.0) no longer flags Tor Browser's tor.exe as a Trojan.

In case users noticed their Tor Browser to be unresponsive, the company suggested following the provided set of instructions, reminding users to verify the signature prior to installation. The red-flagging incident highlights the importance of rigorous safety measures prior to releasing

Tor Browser is a web browser that allows you to browse the internet anonymously and securely. It uses a network of volunteer servers called Tor relays to hide your identity and location from anyone who might be watching your online activity. Tor Browser also blocks trackers, ads, and scripts that can compromise your privacy or security. Tor Browser is based on the Firefox browser, but with some modifications and extensions to enhance your privacy and security.

Luke Jones
Luke Jones
Luke has been writing about all things tech for more than five years. He is following Microsoft closely to bring you the latest news about Windows, Office, Azure, Skype, HoloLens and all the rest of their products.

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