Purpose

Website ads and content, including legitimate ones, can be compromised (or injected) with malicious code that puts your system at risk of infection.

Audience

Contents

Initial considerations

 What can I do?

Install ad-blocking software (extension) for your browser.

Safari

• Possible solution(s) include:

  • https://adguard.com/

Chrome, Edge, Firefox, Opera

• Possible solution(s) include:

  • https://ublockorigin.com/

Other browsers

• Contact your Local IT group for additional assistance. https://uoft-infosec-cf.atlassian.net/wiki/spaces/ISH/pages/4948958/Additional+help#%F0%9F%96%A5%EF%B8%8F-Information-Technology-(IT)

Prevent tracking cookies (also known as third-party persistent or cross-site cookies)

Safari

• Enable “prevent cross-site tracking”

  • https://support.apple.com/en-ca/guide/iphone/iphb01fc3c85/ios#:~:text=Go%20to%20Settings%20%3E%20Safari%2C%20then%20turn%20any%20of%20the%20following,IP%20address%20from%20known%20trackers.

Chrome

• Manage “Tracking protections” to send “Do not track” signal and block third-party cookies.

  • https://support.google.com/chrome/answer/95647?hl=en-GB&co=GENIE.Platform%3DDesktop

Edge

• Enable “Tracking prevention” and ensure “Balanced” or “Strict” profile is selected.

  • https://support.microsoft.com/en-us/topic/adjust-privacy-settings-in-microsoft-edge-600ee799-081c-4ab7-b6c2-d8a9baeda3c4

• Enable “Send ‘Do Not Track’ requests”.

Firefox

• Ensure “Enhanced Tracking Protection” is blocking cross-site tracking cookies.

  • https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop#w_standard-enhanced-tracking-protection

Other browsers

• Contact your Local IT group for additional assistance. https://uoft-infosec-cf.atlassian.net/wiki/spaces/ISH/pages/4948958/Additional+help#%F0%9F%96%A5%EF%B8%8F-Information-Technology-(IT)