#Security

The 'Not secure' warning means your site has no valid HTTPS certificate. Here is what it means, how owners fix it, and what visitors should do about it.

Lock a Word file so only people with the password can open it. Here is the Encrypt with Password step on Windows and Mac, and how to remove it later.

Keep Chrome current for speed and security. Here is how to update it on desktop and phone, and how to read the colored Update dot in the menu.

Lost your Android? Use Find Hub, formerly Find My Device, at android.com/find to ring, lock, or erase it — even offline. Here is the setup and the steps.

Check whether a website is legit before you buy or sign in: verify the URL, run a Safe Browsing scan, check domain age, and read payment red flags.

Password reuse, not weak passwords, is what actually gets people hacked. Here's why a password manager fixes it, the honest risks, and where to start.

The old "hackers sniff your passwords on open Wi-Fi" fear is mostly obsolete thanks to HTTPS. Here's the accurate 2026 threat picture and what still matters.

Not every Windows update deserves the same urgency. Install security patches fast, wait briefly on feature updates, and skip the optional previews.

Incognito mode only clears local history and cookies on this device. Here's what private browsing really hides, what it doesn't, and the tool for each threat.

What a VPN really protects, how to choose one without falling for a bad free app, and how to turn it on in Windows 11 and Android.