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What is Internet Control Message Protocol (ICMP)?
The Internet Control Message Protocol (ICMP) enables network devices to report errors and test connectivity across networks. When a router can’t deliver a packet, when network paths become congested...
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Cache busting: A security perspective
Cache busting is an essential part of modern web development that improves user experience and strengthens site security. It helps protect visitors from malicious scripts and ensures browsers always l...
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What is device fingerprinting, and how does it work?
Whenever you go online, your device quietly shares small pieces of information about itself: its model, operating system, language, time zone, network type, and even the sensors it uses. On their own,...
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How to limit IP address tracking for stronger online privacy
Protecting your Internet Protocol (IP) address plays an important role in maintaining your online privacy. While it doesn’t reveal your exact identity, your IP address can be used to estimate your g...
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Wi-Fi authentication problem: How to fix it on any device
Wi-Fi authentication is a key process that happens every time you connect to a Wi-Fi network, but it doesn’t always go smoothly. When something goes wrong, you might get a Wi-Fi authentication error...
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How to test your internet speed: A secure and simple guide
A fast internet connection lets you stream in high quality, download large files quickly, and enjoy smoother online gaming. Slow speeds, on the other hand, can lead to buffering, lag, and longer load ...
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How to increase bandwidth when using a VPN: Complete guide
Bandwidth is an important but often misunderstood metric that affects overall internet speed. While many people think bandwidth refers to the speed of their internet connection, it’s actually a dist...
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Android private DNS: What it is and how to enable it
Android offers a built-in security feature called private Domain Name System (DNS), which can enhance your online privacy by encrypting your DNS queries. Without secure DNS, your queries are left expo...
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What is a reverse proxy? Secure guide for VPN users
While virtual private networks (VPNs) like ExpressVPN protect your online traffic on the user side, reverse proxies protect websites and servers on the hosting side. Understanding how they differ and ...
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Malgent removal guide (Trojan:Win32/Malgent)
If you've received a security alert for Trojan:Win32/Malgent, it's important to take steps to resolve it. Microsoft’s security intelligence identifies Win32/Malgent as a trojan, which is a type of m...