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Does a VPN protect you from viruses? What you need to know
A virtual private network (VPN) is an important online privacy tool and an integral part of an overall cybersecurity posture. It encrypts your internet traffic, helping protect your data on untrusted ...
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Are DNA tests safe? Privacy risks to know before sharing your genetic data
Millions of people have taken DNA tests to learn more about their ancestry, biological relatives, inherited traits, and possible health risks. The process seems simple: take a saliva sample, send it t...
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Unknown Caller vs. No Caller ID: What's the difference?
Unknown Caller or No Caller ID may seem like the same thing, but they’re not. That difference matters when you’re deciding whether to answer. Unknown Caller generally means the caller's informatio...
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VPC vs. VPN: What each one does, and when you need both
Virtual private clouds (VPCs) and virtual private networks (VPNs) are often confused. The names sound similar, and they both come up when you’re thinking about cloud security. But they answer entire...
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Block cipher vs. stream cipher: How they work and when to use each
Block and stream ciphers are the two main families of symmetric ciphers used for encryption. They use the same cryptographic key to encrypt and decrypt data, but they process it differently. That diff...
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Is Duolingo safe? Privacy, security, and child safety explained
Duolingo is one of the most popular language-learning apps in the world. As of Q1 2026, it had 137.8 million monthly active users. Its short lessons, streaks, and gamified progress tools are designed ...
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What is AI art? A beginner-friendly guide to how it works and what it means for creativity
You can find AI art nearly everywhere, from art, design, entertainment, and marketing to personal projects. Christie's, the world-famous art and antique auction house, even has an AI art auction. In s...
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Is Venmo safe? Privacy, security, and smart payment tips
Venmo is an easy way to send money to friends or split a bill when going out to a restaurant. But how safe is it compared to other payment methods? Venmo has strong security features, but its safety d...
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Is Coinbase safe? A complete security guide before you buy, store, or transfer crypto
Coinbase is one of the most widely used crypto exchanges among beginners and experienced traders. It's often presented as a relatively "safe" platform, but that framing oversimplifies how crypto secur...
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Credential dumping explained: How to detect and prevent it
When attackers break into an organization, they often aren’t after one machine or files on it. They’re after the credentials: the usernames, passwords, and authentication tokens that unlock everyt...
