Sunday, October 18, 2026

Browser Autofill Feature Poses Security Risks

Browser Autofill feature helps you to save your credentials like call, email, address, cellphone quantity, etc. so you don’t have to fill it manually time and again.Tragically, it’s helpful for attackers, as well.

Despite that maximum users see Autofill feature as a comfort that gives ease while filling out credentials, it is able to also result in large protection risks main to financial losses and a chance to personal facts.

This proof-of-concept demo website consists of a simple online web form with just two fields: name and email.

But what’s not visible are many out of sight fields, including the credit card information, phone number, organization, address, postal code, city etc.

Browser Autofill Feature Poses Security Risks
Browser Autofill Feature Poses Security Risks

Fields inside the page may also get auto-filled alongside no less than one seen, standard content zone that is typically placed in some other container inside a similar frame.

Browsers vulnerable against the assault incorporate Google Chrome, Apple Safari and Opera. Then again, if you utilize Mozilla Firefox or Tor, you don’t have to stress over this issue in light of the fact that Mozilla doesn’t encourage auto-filling many fields at once.

On the positive side, this strategy alone can’t catch passwords spared in the program since they’re fixing to a particular domain, yet that is not going to feeling somebody that lost their individuality and financial information.

How to Mitigate the Risk

One of the unfeasible methodologies is investigate the source code of the page before submitting anything. In any case, this is impractical essentially and furthermore includes specialized know-how. Consequently, the best approach is incapacitate autofill highlight for all time.

Disable auto-filling of online forms – Opera

  • Tap on the Opera button.
  • Go to Settings > Privacy & security.
  • In the right pane, scroll to the “Autofill“.
  • Uncheck “Enable auto-filling of forms on webpages“.

Disable auto-filling of online forms – Chrome

  • Load Google Chrome browser in your PC.
  • Tap on the upper right side corner of your program window to open “Settings”.
  • Tap on the “Advanced Setting” to look down to the “Passwords and forms” section.
  • Expel the check stamp from “Enable Autofill to fill out web forms in a single click” and “Offer to save your web passwords.”

Disable auto-filling of online forms – Safari

  • Click on the Safari menu > Preferences > Autofill tab.
  • Next to “AutoFill Web Forms” uncheck the following options:
    • Using info from my Address Book card
    • User names and passwords
    • Other forms
  • Close the preferences window.
Gurubaran
Gurubaran
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

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