Protecting your personal information online starts with understanding the language behind your apps, devices and accounts. We'll break down five essential tech terms that directly impact your digital privacy, from app permissions and location tracking to VPNs and cross-app advertising.
Learning these concepts will help you limit data exposure and stay in control of who can see what.
Stay tuned for more in this series as we dive deeper into privacy-related tech terms and other essential concepts, answering the top questions we get from readers like you!
Settings may vary depending on your Android phone’s manufacturer
Even with careful permission management, malicious apps and phishing attempts can still slip through. A trusted antivirus solution helps block malware, fake pop-ups and dangerous downloads before they compromise your device.
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When your phone knows where you are, constantly
Hiding your online activity
A VPN creates a secure, encrypted tunnel between your device and the internet, masking your IP address and protecting your online activity from outsiders.
VPNs are especially important when using public Wi-Fi at airports, hotels or coffee shops, where cybercriminals can intercept unprotected data. They also help limit tracking by advertisers and internet service providers.
While a VPN doesn't make you completely anonymous online, it adds a valuable layer of privacy and security, especially when browsing, shopping or accessing sensitive accounts.
For the best VPN software, see my expert review of the best VPNs for browsing the web privately on your Windows, Mac, Android and iOS devices at Cyberguy.com.
How companies follow you across apps
Cross-app tracking lets advertisers and data brokers link your activity across multiple apps and websites. That data is used to build detailed profiles based on what you do, buy and watch.
On iPhone, this tracking is controlled by Apple's App Tracking Transparency system.
On Android, it relies on advertising IDs and ad personalization controls.
Turning these off limits how easily companies can connect your behavior across apps. You'll still see ads, but they won't be tailored to your personal activity.
Settings may vary depending on your Android phone’s manufacturer
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Online privacy doesn't have to feel overwhelming. Once you understand what these common tech terms really mean, it becomes much easier to spot where your data is being collected and decide what you're comfortable sharing. Small changes, like tightening app permissions or turning off cross-app tracking, can make a meaningful difference over time. Staying informed is the first step toward staying in control, and we'll keep breaking it all down so you can protect your digital life with confidence.
Confused by a tech term or want something explained? Let us know by writing to us at Cyberguy.com.
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