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WannaCry ransomware explained: The attack that changed cybersecurity
In May 2017, ransomware known as WannaCry spread rapidly across computer networks worldwide. Within hours, hospitals, manufacturers, telecommunications providers, and government agencies were dealing ...
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Session hijacking explained: The hidden threat behind stolen tokens
When someone signs into email, accesses online banking, or performs other tasks online and leaves the session active, that session could be misused by someone else without their knowledge. In some cas...
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How to resolve “This app has been blocked for your protection”
“This app has been blocked for your protection” tends to show up at the worst time, right when you’re trying to open or install an app you trust. The tricky part is that Windows uses similar lan...
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ECDSA vs. RSA: Security, compatibility, and key size compared
Rivest-Shamir-Adleman (RSA) and Elliptic Curve Digital Signature Algorithm (ECDSA) underpin everyday security, including website authentication, app login verification, and software updates verified b...
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How to disable WebRTC and stop IP leaks in major browsers
You turn on your virtual private network (VPN), open your browser, and your IP address should be private. It isn’t always. WebRTC, a technology built into every major browser for real-time audio, vi...
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Token-based authentication explained: How it works, benefits, and best practices
Many modern apps let you refresh a page without having to re-enter your password, stay logged in across sessions, or use one account to access multiple services. This is made possible by token-based a...
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Augmented reality vs. virtual reality: What’s the difference and why does it matter?
Augmented reality (AR) and virtual reality (VR) are often grouped together, but they offer very different experiences and are used in different ways. AR adds digital elements to your surroundings, whi...
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What is DNS over HTTPS (DoH) and how does it work?
DNS over HTTPS (DoH) sends Domain Name System (DNS) queries using HTTPS, the secure web protocol also used for encrypted website connections. That helps protect DNS traffic from being read or altered ...
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Tracking pixel: How it works and how to protect your privacy
Tracking pixels are small, hidden tools that help companies measure what people do online. They can log signals such as email opens, page visits, ad clicks, and conversions, often without any obvious ...
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Third-party vs. first-party cookies: What’s the difference and why does it matter?
First and third-party cookies are different ways websites store and access data in your web browser. First-party cookies are set and used by the website you visit, while third-party cookies come from ...