Email attachments are a common way of passing malware which expose users to potential data loss. Information Technology Services has the existing practice of adding -utCAUTION! to .zip email attachments coming from outside of the University to U of T email. This practice is in place to provide users with a warning in the event the file is malicious and allow users to take pause before opening an unknown or unwelcome attachment. This is a common practice to decrease the chances of malware being automatically installed via email attachment downloads.
This same practice has been expanded to more filenames since July of this year. When U of T email users receive an attachment in their email from outside the university, attachment filenames *.zip, *.docm, *.xlsm, and *.pptm, will be renamed by appending -utCAUTION!
In order to open the file, the user will have to rename the file after saving it to their desktop by removing the appending -utCAUTION!.