What are computer cookies?
Computer cookies are small files used by web servers to save browsing information, allowing websites to remember your device, browser preferences, and associated online activity.
- Persistent cookies: Persistent cookies can save data for an extended period of time. These are the cookies that allow websites to store username and password information for users.
- Third-party cookies
: Third-party cookies seek out data regarding your online activity to send back to website owners looking to improve advertisements. - Session cookies: Session cookies delete immediately after closing your browser. These are best known for allowing you to keep items in a shopping cart even after clicking on a different page.
As you can see, cookies can benefit both the internet user and the website, but are they safe for our devices?
Are cookies safe?
Under normal circumstances, cookies cannot transfer viruses or malware to your computer. Because the data in a cookie doesn’t change when it travels back and forth, it has no way to affect how your computer runs.
However, some viruses and malware may be disguised as cookies. For instance, “super cookies'' can be a potential security concern, and many browsers offer a way to block them. A “zombie cookie” is a cookie that recreates itself after being deleted, making them tough to manage. Third-party tracking cookies can also cause security and privacy concerns, since they make it easier for parties you can’t identify to watch where you’re going and what you’re doing online.
For this reason, you might want to know how to delete computer cookies from your browser.
How to enable or delete computer cookies
You might be surprised to learn that finding and managing cookies on computers can be as easy as 1-2-3:
- Open your browser, be it Firefox, Chrome, Edge, or Safari.
- Navigate to where cookies are stored. Each browser manages cookies in a different location. For example, in Chrome, choose “Preferences” from the Chrome menu in the navigation bar, which will display your settings. Then select the “Privacy and Security” option. From there, you'll see options to manage cookies, cache, and other kinds of browser data.
- Manage your cookies. Every browser gives you a range of options for enabling or deleting cookies. In Chrome, find where cookies are stored as outlined above, then select “Clear browser data” to delete cookies or “Cookies and other site data” if you want more management options.
As you can see, most browsers have become increasingly open to letting us take control of our data and who has access to it.
Banning all browser cookies could make some websites difficult to navigate. However, controlling or limiting third-party and tracking cookies can help improve your privacy and personal cybersecurity while still making it possible to shop online and carry out similar activities.