Do not download ‘OneClass’ Chrome Extension

The University have been made aware of a phishing email telling students and staff to download Google Chrome extension OneClass which steals their usernames and passwords. This extension is not supported by Blackboard or the University of Leicester. You should not install this extension.


Blackboard have released a warning about a spam email which encourages people to download a Google Chrome extension, which steals student and staffs' usernames and passwords. Once the extension is installed the email is circulated from their email account.

We are not currently aware of these emails being sent to staff and students at our University, but you should avoid opening any emails which are not from trusted sources.

OneClass has been removed from Google Chrome’s app store.

How do I remove the extension from my browser?

If you think that you may have downloaded the OneClass Chrome extension follow these instructions to remove it from your device:

  1. Open Google Chrome
  2. Select the 3 vertical dots in the top right-hand corner
    Three Dots High Quality
  3. Select Settings
    Settings High Quality
  4. Select Extensions in the top left-hand corner
    Extensions High Quality
  5. Click the Trashcan icon beside the “OneClass Easy Invite” extension
  6. Select Remove on the Confirm Removal popup.

Once you have removed the extension, reset your password by using the Online Tool or calling the IT Service Desk on 0116 252 2253. If you are on campus you can also visit the Help Zone in the David Wilson Library.

Report an email

If you think that you may have received a phishing email about OneClass or if you have downloaded phone the IT Service Desk on 0116 252 2253.

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