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How to fix the “RPC server is unavailable” error on Windows
The “RPC server is unavailable” error appears when Windows can’t communicate with a required service or another system, such as during disk management tasks or when connecting to a domain contro...
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What is a pass-the-hash attack and how to prevent it
Windows has several ways to verify a user's identity on a network. One of the older methods is the New Technology LAN Manager (NTLM) protocol. It converts a password into a cryptographic value known a...
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What are third-party cookies, and should you block them?
If ads seem to follow you from one website to another, it’s not usually a coincidence. Many websites load advertising, analytics, and social media services from external companies. Those companies c...
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What is a proxy server?
Proxy servers are widely used networking tools that sit between a client, such as your browser, and a destination server, such as a website. With a proxy server in your traffic path, your data doesn't...
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What is DD-WRT? Benefits and risks of installing it
Routers come with default firmware and settings, but they can be limiting if you need more customization or to extend Wi-Fi coverage. DD-WRT is an option that may offer better functionality, connectio...
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What are generative adversarial networks (GANs)?
Generative adversarial networks (GANs) are a type of deep learning model that can generate synthetic data resembling real-world data. They’re typically used to generate images, though they’ve also...
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What is email encryption, and why does it matter?
Email encryption is a security method that protects the contents of an email. It matters because, without encryption, emails would travel across the internet in plaintext, making it easy for third par...
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What is a VPN concentrator? Understand its role today
As organizations shift to hybrid and remote models, secure remote access has become a core IT requirement. Virtual private netwoks (VPNs) are widely used to meet this need by encrypting remote connect...
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What can someone do with my email address without a password?
An email address can reveal more than most people realize. In the wrong hands, it could help locate social media profiles, build a personal profile for targeted attacks, or launch phishing and spam ca...
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Wireless network connection: Basics and beyond
When people mention wireless network connection, they’re usually talking about Wi-Fi. The terms are often used interchangeably, but Wi-Fi is actually just one type of wireless technology. “Wireles...