Web cookies (also called HTTP cookies, browser cookies, or simply cookies) are small pieces of data that websites store on your device (computer, phone, etc.) through your web browser. They are used to remember information about you and your interactions with the site.
Purpose of Cookies:
Session Management:
Keeping you logged in
Remembering items in a shopping cart
Saving language or theme preferences
Personalization:
Tailoring content or ads based on your previous activity
Tracking & Analytics:
Monitoring browsing behavior for analytics or marketing purposes
Types of Cookies:
Session Cookies:
Temporary; deleted when you close your browser
Used for things like keeping you logged in during a single session
Persistent Cookies:
Stored on your device until they expire or are manually deleted
Used for remembering login credentials, settings, etc.
First-Party Cookies:
Set by the website you're visiting directly
Third-Party Cookies:
Set by other domains (usually advertisers) embedded in the website
Commonly used for tracking across multiple sites
Authentication cookies are a special type of web cookie used to identify and verify a user after they log in to a website or web application.
What They Do:
Once you log in to a site, the server creates an authentication cookie and sends it to your browser. This cookie:
Proves to the website that you're logged in
Prevents you from having to log in again on every page you visit
Can persist across sessions if you select "Remember me"
What's Inside an Authentication Cookie?
Typically, it contains:
A unique session ID (not your actual password)
Optional metadata (e.g., expiration time, security flags)
Analytics cookies are cookies used to collect data about how visitors interact with a website. Their primary purpose is to help website owners understand and improve user experience by analyzing things like:
How users navigate the site
Which pages are most/least visited
How long users stay on each page
What device, browser, or location the user is from
What They Track:
Some examples of data analytics cookies may collect:
Page views and time spent on pages
Click paths (how users move from page to page)
Bounce rate (users who leave without interacting)
User demographics (location, language, device)
Referring websites (how users arrived at the site)
Here’s how you can disable cookies in common browsers:
1. Google Chrome
Open Chrome and click the three vertical dots in the top-right corner.
Go to Settings > Privacy and security > Cookies and other site data.
Choose your preferred option:
Block all cookies (not recommended, can break most websites).
Block third-party cookies (can block ads and tracking cookies).
2. Mozilla Firefox
Open Firefox and click the three horizontal lines in the top-right corner.
Go to Settings > Privacy & Security.
Under the Enhanced Tracking Protection section, choose Strict to block most cookies or Custom to manually choose which cookies to block.
3. Safari
Open Safari and click Safari in the top-left corner of the screen.
Go to Preferences > Privacy.
Check Block all cookies to stop all cookies, or select options to block third-party cookies.
4. Microsoft Edge
Open Edge and click the three horizontal dots in the top-right corner.
Go to Settings > Privacy, search, and services > Cookies and site permissions.
Select your cookie settings from there, including blocking all cookies or blocking third-party cookies.
5. On Mobile (iOS/Android)
For Safari on iOS: Go to Settings > Safari > Privacy & Security > Block All Cookies.
For Chrome on Android: Open the app, tap the three dots, go to Settings > Privacy and security > Cookies.
Be Aware:
Disabling cookies can make your online experience more difficult. Some websites may not load properly, or you may be logged out frequently. Also, certain features may not work as expected.
By: Eli Freund, Editorial Communications Manager, UConn School of Engineering
Luarent Michel (left) and Stephen Altschuler Photos from an event for the new Altschuler Cybersecurity Lab taken Wednesday, October 16, 2019 at UConn Information Technologies Engineering Building in Storrs. (G.J. McCarthy / UConn Foundation)
The UConn School of Engineering is pleased to announce the appointment of Laurent Michel, a professor in the Computer Science and Engineering Department, as the next Synchrony Financial Chair for Cybersecurity. Michel’s appointment was approved by the UConn Board of Trustees during their meeting on December 11, 2019.
The position, established by a generous donation from Synchrony Financial in 2016, is aimed at supporting a leader focused on the advancement of education and research in cybersecurity. In addition to the endowed professorship, Synchrony Financial also has a presence in the UConn Tech Park, with the Synchrony Financial Center of Excellence, which is currently led by Michel.
Michel is an internationally recognized expert in the area of cybersecurity and received a B.S. and an Sc.M. in computer science from “Les Facultes Universitaires Notre-Dame de la Paix” (‘93) in Namur, Belgium. He later received Sc.M. (‘96) and Ph.D. (‘99) degrees in computer science from Brown University.
He is an elected member of the Connecticut Academy of Science and Engineering and has served his professional field as the President for the International Association for Constraint Programming (2015-2018). At UConn, Michel currently serves as the Director of the Synchrony Financial Center of Excellence in Cybersecurity, as co-Director of the Comcast Center of Excellence for Security Innovation, and as co-Director of the Connecticut Cybersecurity Center. His work has been continually funded by federal and state agencies and by industry, including Comcast, Alstom Grid, ISO New England and others. His work in automation, resource allocation, configuration and side-channel attacks are directly pertinent to many industries, including financial, transportation, health care, and manufacturing. Michel is a leader of outreach and community engagement, organizing activities such as the CyberSEED competition for young, aspiring computer scientists held at UConn. He remains engaged with the State of Connecticut as a founding member of the Voting Technology Research Center, which allowed the State to become a leader in election security. He has co-authored 2 monographs, edited 1 book, has published more than 100 articles, and served as Associate CSE Department Head from 2014 to 2018.
For more information on Michel and his work, please click here to be brought to his academic page.