Why Clearing Cookies Boosts Your Browser Security
We all encounter cookie banners each time we visit a website. Often, we instinctively click ‘accept’ and continue browsing. But what exactly are cookies, and how do companies use them online?
Cookies are small text files stored on your browser. Their main purpose is to identify users, save login credentials, or customise web pages according to individual preferences.
Many websites use cookies to build detailed user profiles, tracking visits, searches, purchases, and overall online behaviour. This helps improve the user experience, but concerns about privacy and security remain valid.
In response, privacy regulations like the GDPR now require companies in the EU to inform users about cookies and obtain consent before using this data.
Types of Cookies
Websites use different types of cookies to track distinct activities. The three most common types are:
Session Cookies
Stored temporarily during a browsing session, these cookies are deleted once the user leaves the site. They do not store personal data and are often used on shopping sites to transfer information between pages.
Stored Cookies
Stored cookies track preferences, including usernames and passwords, to improve user experience. These cookies automatically fill details during future visits and expire after a set period.
Third-Party Cookies
Also called tracking cookies, these collect behavioural data and may be shared or sold to advertisers. They often explain why ads follow you across multiple websites. Third-party cookies can be disabled via browser settings to protect privacy.
Are Cookies Safe?
Cookies are plain text files that cannot transmit viruses or malware. However, certain types—like ‘Super Cookies’ and ‘Zombie Cookies’—pose security risks as they are persistent or hard to remove.
Why You Should Delete Cookies on Your Browser
Deleting cookies is advisable for several reasons:
- Security threats: Hackers can hijack cookies to access personal data and browser sessions.
- Browser performance: Accumulated cookies can slow down browsing speed over time.
- Personal data protection: Cookies store browsing history and purchase details that advertisers may track.
- Shared devices: On public computers, unremoved cookies can expose your login and browsing history.
How to Delete Cookies on Your Browser
Most browsers allow easy cookie management through the privacy or security settings. Users can view stored cookies and delete them selectively or entirely to maintain privacy and performance.
While cookies enhance browsing efficiency and personalisation, understanding their risks helps users decide when regular deletion is necessary. Keeping cookies under control can protect privacy and reduce the risk of cyber threats.
Learn More About MetaCompliance Solutions
For organisations aiming to improve cybersecurity awareness and reduce human risk, MetaCompliance offers a comprehensive suite of solutions. Our Human Risk Management Platform includes:
- Automated Security Awareness
- Advanced Phishing Simulations
- Risk Intelligence & Analytics
- Compliance Management
These tools help protect organisations, strengthen cyber resilience, and address the risks posed by cookies and other online threats. Contact us today to book a demo.
FAQs About Cookies and Browser Security
What exactly is a cookie?
A small text file stored by a website to remember your preferences or login information.
Are all cookies dangerous?
No. Most cookies are harmless, but certain types like Super or Zombie Cookies can pose security risks.
How often should I delete cookies?
Regularly, especially on shared or public computers, or if you want to maintain privacy and speed.
Can cookies store passwords?
Stored cookies can remember login details to improve convenience, but this carries potential privacy risks.