All About Cookies - You’re serious about online security. So are we.

Whether you're trying to decide on which password manager to use, researching how to protect your privacy while browsing the internet, or wondering about the best internet provider in your area, the All About Cookies team is here to ensure you feel confident making decisions about your online privacy and security.

Nov 30, 2023 - 08:48
Jan 13, 2024 - 09:30
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Techatty All-in-1 Publishing
Techatty All-in-1 Publishing

All About Cookies - You’re serious about online security. So are we.

The experts at All About Cookies dig into the research, interview industry pros, and conduct hands-on testing to create simple, helpful guides that make it easy for you to get online — safely.

Online security and privacy issues are confusing no matter what your tech level is. There are tons of products to choose from and no clear answer about which one works best… Until now.

Whether you're trying to decide on which password manager to use, researching how to protect your privacy while browsing the internet, or wondering about the best internet provider in your area, the All About Cookies team is here to ensure you feel confident making decisions about your online privacy and security.

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What Are Internet Cookies and How Are They Used?

Internet cookies ensure websites remember who you are so you can have a smooth browsing experience. But not all cookies are good. Here’s what to know.

Although browser cookies are a useful tool to create a smooth internet experience, not all people are comfortable with the way they’re used. Many people raise concerns about privacy due to how cookies track your browsing habits and collect personal data.

Cookies have existed for almost as long as the internet, and it’s important to understand how they work and how to keep your online data safe. Keep reading to learn more about internet cookies and what you can do to protect your privacy.

What are cookies used for on websites?

The main purpose of web cookies is to make the internet experience easier for users. When websites can remember your past visits, they can load their website with your preferences. Here are a few things cookies can do when you visit a website:

  • Set your chosen language preference
  • Remember items in a shopping cart
  • Remember if certain settings are turned on
  • Authenticate your identity
  • Prevent fraud
  • Create highly targeted ads
  • Track how you interact with ads
  • Make personalized content recommendations
  • Track items you view in an online store
  • Auto-fill information in forms

11 different types of computer cookies

There are different types of computer cookies each tasked with a responsibility to track certain aspects of you or your online behavior. Some cookies are necessary for websites to load properly, whereas others are purely for marketing purposes.

Knowing the difference can help you choose which cookies you would like to allow the next time you visit a website asking for your cookie preferences.

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1. Magic cookies

Magic cookies were originally used by Unix programmers to authenticate and track users in a system. Magic cookies are data tokens that allow servers and web browsers to communicate.

HTTP cookies are a type of magic cookie used by websites to store information. The data stored in magic cookies are encrypted and, under normal circumstances, only the server that created the cookie can read the data.

2. HTTP cookies

HTTP cookies are the internet version of magic cookies. They were specifically designed for the web, and this is where all modern cookies are derived from. Lou Montulli invented the HTTP cookies in 1994 to help websites remember the users visiting them and lessen the burden on web servers.

3. First-party cookies

First-party cookies are from websites you directly visit in your browser and are used to improve your online user experience. They often store information relevant to the website such as what you’ve viewed in the past or your settings preferences.

As long as you are visiting authentic and reputable websites, first-party cookies are usually harmless and make it easier to browse your favorite websites.

4. Third-party cookies

Third-party cookies are probably the most controversial type of cookie in terms of data privacy. They usually track your behavior for advertising purposes and aren't a direct part of the websites you visit. Instead, they’re usually embedded in ads, videos, or web banners. Even a Facebook "like" button uses third-party cookies.

5. Zombie cookies

Also known as supercookies, zombie cookies are a type of third-party cookie. However, they aren't stored in the same place as regular cookies. So even if a person deletes cookies, zombie cookies will rise from the dead and reinstall themselves. They have gained a reputation for being notoriously difficult to remove.

6. Session cookies

Session cookies work by storing information while you're browsing a website. This means it won't have to reauthenticate you for every web page you visit. Once you exit, your browser deletes all session cookies.

Session cookies enable you to add an item to your shopping cart, browse multiple other pages, and then still keep track of your item in your cart.

7. Persistent cookies

Persistent cookies are used to track and collect information about you. This particular cookie enables websites to remember if you're logged in and under what account. It's also used to build a profile on your search history, so websites can recommend products, services, or content relevant to you. Most of these cookies usually have an expiration date.

8. Essential cookies

You're probably familiar with the banner or pop-up asking you for your cookie preferences for a website. Essential cookies are frequently an option to run only cookies necessary to run the website or for services you have requested (such as remembering your login credentials). This means you remove third-party cookies from your website experience.

Why do so many websites ask me to accept cookies?

You may notice more and more website pop-ups that ask you to accept cookies. That’s because these sites are required to ask for permission and provide you with information on how they use cookies, per the EU’s General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA).

9. Performance cookies

As the name suggests, performance cookies track your online movements and that data is used to improve the website. They measure analytics like how many times you visited a page, how much time you spent on a page, or when you left the website. This is often a first-party cookie, but many websites use a third party to track these analytics.

10. Functionality cookies

Functionality cookies allow you to use the fundamental features of a website. This could be anything from your language preference to displaying local news stories. They typically enhance a website's performance and functionality. Some site features may not be available without functional cookies.

11. Advertising cookies

Third-party persistent cookies are often used for advertising purposes. Advertising cookies (also called targeting cookies) build a profile on you based on your interests, search history, and items you view. They then share that information with other websites, so they can advertise relevant products and services to you.

For example, maybe you searched for gym shoes recently. Don't be too surprised later when you see an ad on social media for gym shoes or relevant items such as socks.

Are computer cookies safe?

A normal cookie from a trusted website is generally safe to accept. Cookies don't contain any identifiable information and are mostly used to ensure you have a smooth browsing experience by remembering your preferences and authenticating your identity.

Cookies can't be used to download malicious software. However, cookie poisoning (or impersonating authentic cookies) could lead to falsifying an authentic user's identity or using legitimate session IDs to perform malicious actions on a website.

In terms of unsafe cookies, zombie cookies are also difficult to remove. You'll need to find and delete the cookie which continues to reinstall deleted zombie cookies. A system cleaner may be the best way to sanitize your device for malware and unwanted files.

Are third-party cookies safe?

Third-party cookies can't discover who you are personally, but they will know a lot about your interests and what you do based on your recent web searches and browsing history.

This is valuable information to advertisers, and it's often sold to them. User privacy advocates point out concerns about how this data is getting used and sold without the user's knowledge of it even getting collected. The lack of digital privacy may not be ideal for many people.

Should you accept third-party cookies?

Third-party cookies have no direct impact on your browsing experience, and many browsers have already phased them out. Websites still load properly and remember your preferences without using third-party cookies.

If online privacy is a priority for you, then you may want to consider blocking third-party cookies on your preferred browser if it doesn't do it already.

You may want to consider allowing third-party cookies if you prefer having ads relevant to you. Otherwise, you may get mismatched advertising which could be more annoying than seeing ads for products you might actually like.

How to disable third-party cookies

Disabling third-party cookies can mitigate the risk of your online data getting shared with advertisers. Here is a simple guide to disabling and managing cookies for popular browsers:

How to disable cookies on Google Chrome

  1. To clear Chrome cookies, open your browser.
  2. At the top right, click the three vertical dots to open a drop-down menu.
  3. Select "Settings."
  4. Under "Privacy and security", click "Cookies and other site data."
  5. Select an option like "Block third party cookies" or "Block third-party cookies in Incognito."

How to disable cookies on Mozilla Firefox

  1. Open the Firefox browser.
  2. At the top right, click the three horizontal lines to open a menu.
  3. Select "Settings."
  4. Tap the "Privacy & Security" panel.
  5. Under "Enhanced Tracking Protection", select "Custom."
  6. Check mark "Cookies" and choose your cookie preference in the accompanying drop-down menu.

Microsoft Edge

  1. Open the Microsoft Edge browser.
  2. At the top right, select the three dots icon to open a menu.
  3. Select "Settings."
  4. Choose "Site permissions."
  5. Tap "Manage and delete cookies and site data."
  6. Turn on "Block third-party cookies."

Apple Safari

  1. Open the Safari app.
  2. Tap "Safari" at the top of the navigation bar.
  3. Select "Preferences."
  4. Click "Privacy."
  5. Choose your cookie preferences like "Always block cookies " or "Prevent cross-site tracking."

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