Category Archives: Security

  • 6 VPN leak scenarios and how to prevent them

    Posted on August 29, 2021 by pcwrt in Security, VPN.

    1. DNS Leak DNS Leak is the most common type of leak when you are connected to a VPN. Even after your VPN is successfully connected, there’s a possibility that your DNS queries are sent outside the secure tunnel established by the VPN. As such, your ISP or the owner of the WiFi hotspot you […]

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  • Is Google using fingerprinting to track you?

    Posted on August 11, 2021 by pcwrt in Security, VPN.

    What’s your location? A post on Reddit reported that Google continues to display his actual address despite him using a VPN, turning off WiFi and blocking Geolocation. He even tried fresh installations. Intrigued by the post, I did the tests described here to understand the behavior. To eliminate the possibility of tracking by cookies, I […]

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  • Use OpenDNS for Ad Blocking?

    Posted on January 29, 2021 by pcwrt in Router, Security.

    A lot of people use OpenDNS on their home networks to block contents that might be harmful to children. Some were asking whether OpenDNS can add a filtering category to block unwanted ads. The answer from OpenDNS was no, and for good reason. As a result, if you want to use a DNS service to […]

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  • Is WyzeCam Sending Data to Servers Other Than AWS?

    Posted on January 26, 2021 by pcwrt in Security, Technology.

    When the WyzeCam started selling a few years back, there was an alarming review on Amazon stating that it was sending data all over the world. The reviewer claimed seeing traffic heading to China, Japan and Germany, among other locations. The review on Amazon is probably no longer available. But the discussion on Reddit is […]

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  • Oblivious DNS over HTTPS vs DoH through HTTP proxy

    Posted on December 9, 2020 by pcwrt in Security, Technology.

    Cloudflare recently published a blog post on how Oblivious DNS over HTTPS (ODoH) works. According to the blog post, the purpose of ODoH is to separate the DNS queries from the originating IP addresses, preventing the DoH provider from seeing who’s sending the DNS requests. Thus improved privacy for clients. Schematically, this is how it […]

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  • Why DNS leak tests might fool you

    Posted on August 8, 2020 by pcwrt in Security, VPN.

    What is a DNS leak test Even after you connect to a VPN, your DNS queries might still be sent to your ISP instead of your VPN service. This situation is called a DNS leak. DNS leak tests will tell you who your DNS provider is. You’ll find multitude of DNS leak test sites when […]

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  • Is it safe to enter credit card info on public WiFi?

    Posted on May 11, 2020 by pcwrt in Security, Technology, WiFi.

    How big is the risk? Time and time again you’ve been told that public WiFi hotspots or compromised routers will get your credit card numbers and banking info stolen. However, such risks have been overly hyped. We agree that public, open WiFi networks totally cannot be trusted. And that compromised routers can be used to […]

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  • Monitor activities on your home network

    Posted on May 6, 2020 by pcwrt in Parental Control, Security.

    The pcWRT router provides two ways to monitor your network activities. You can view every site visited (or blocked) by each device (or user) by clicking the “View Logs” link on the Access Control page. And you can view the bandwidth consumption of each device on the Bandwidth Monitor page. Access Logs Click the View […]

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  • Ad blocking on your home network (and in apps)

    Posted on May 2, 2020 by pcwrt in How To, Router, Security.

    Problems with ad blocking browser extensions Browser extensions are the most popular tools for ad blocking. However, they have a few drawbacks. Browser extensions bring higher security risks. In fact, a few popular ad blocker extensions were found to be malicious and were removed from the Chrome Web Store recently. They only work inside the […]

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  • Concerned about privacy? Don’t bother to reset your advertising ID

    Posted on February 21, 2020 by pcwrt in Security.

    What is the advertising ID? The advertising ID is an identifier on your mobile device that is created to identify you for advertising purposes. It is present on both Android and iOS devices. Apps on your mobile devices can send your behavior along with the advertising ID to one or more advertising networks. By linking […]

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