A cookie is a small piece of data that is sent by the web server and stored on the user's computer.
- If you have to log in to access a site, then your username and password may be stored in a cookie. That way, you won't need to enter them when you visit the site again.
- If you are selecting products from an online store, cookies may store information about items you added to your cart. This means that if you leave the site without placing an order and come back later, you will see the items you added to your cart last time.
- If pages on the site need to be personalized, your personal information may be stored in a cookie. For example, let's say you enter your name the first time you visit a site. When you visit in the future, you may be greeted with "Hello, Alice".
Privacy risks of cookies
Cookies can be used for malicious purposes. If someone else uses your smartphone and your passwords are stored in cookies, they can access your accounts on websites. Cookies can be used to find out what pages you've visited and this data might be used to show you obtrusive advertising.
In general, disabling cookies will cause you more inconvenience than it's worth, but if you want to do everything possible to prevent your data from leaking, you will need to disable cookies. However, some sites may stop working properly after you do this.
Delete cookie files
To protect your privacy, or just to free up some space on your smartphone, you can delete all cookie files.
- Tap in the browser (if you don't see this button, press the menu button on your smartphone).
- Tap Settings.
- Go to the Privacy section.
- Tap Clear data.
- Turn on Website data.
- Disable all the other options (if you only want to delete cookies).
- Tap Clear data.
- Confirm deletion.