Website Password Stealing: How to Stay Safe

TL;DR

Yes, a malicious website can steal passwords saved in your browser. However, modern browsers have strong security features to prevent this. Keep your browser updated, be careful about which websites you visit and what you click on, and use a password manager for extra protection.

How Websites Can Steal Your Passwords

1. Cross-Site Scripting (XSS): This is the most common way. A hacker injects malicious code into a trusted website. When you visit that compromised site, the code runs in your browser and can steal your saved passwords.
   Think of it like someone adding a hidden camera to a shop you trust.
2. Keyloggers: Some websites try to install software (a keylogger) on your computer. This records everything you type, including usernames and passwords.
   This is less common now due to browser security features.
3. Phishing Websites: Fake websites that look like legitimate ones (e.g., your bank). They trick you into entering your password directly onto their site.
   Always check the website address carefully!

How Browsers Protect You

1. Same-Origin Policy: This prevents a website from accessing data from another website. For example, evilwebsite.com can’t directly read passwords saved for yourbank.com.
   This is a fundamental security feature of all modern browsers.
2. Content Security Policy (CSP): This tells the browser which sources are allowed to load resources from. It helps prevent XSS attacks by blocking malicious code.
   Web developers configure this, but it’s important for your protection.
3. Sandboxing: Isolates websites from each other and your operating system. Even if a website is compromised, it can’t easily access your files or other applications.
   This limits the damage a malicious website can do.

Steps to Protect Your Passwords

1. Keep Your Browser Updated: Updates include critical security patches that fix vulnerabilities.
   • Chrome: Settings > Help > About Google Chrome. It will automatically check for updates.
   • Firefox: Menu > Help > About Firefox.
   • Edge: Menu > Help and feedback > About Microsoft Edge.
2. Be Careful What You Click On: Avoid suspicious links in emails, messages, or on websites.
   If it looks too good to be true, it probably is!
3. Check Website Addresses (URLs): Make sure the website address is correct and uses https://. The padlock icon indicates a secure connection.

   https://www.yourbank.com

4. Use Strong, Unique Passwords: Don’t reuse passwords across multiple websites.
   A password manager can help you create and remember strong passwords.
5. Enable Two-Factor Authentication (2FA): Adds an extra layer of security to your accounts.
   Even if someone steals your password, they’ll need a code from your phone or email.
6. Consider a Password Manager: These tools securely store and manage your passwords, and can even generate strong ones for you.
   • Popular options include LastPass, 1Password, Bitwarden, and KeePass (open source).
7. Browser Security Extensions: Some extensions offer extra protection against phishing and malware.
   Research any extension before installing it to ensure it’s trustworthy.

What if You Think Your Password Has Been Stolen?

1. Change Your Password Immediately: For the affected website and any other accounts that use the same password.
2. Check Account Activity: Look for any unauthorized transactions or changes to your account settings.
3. Contact Your Bank/Service Provider: Report the incident and ask for assistance.