Google Drive Security Update May Change File Sharing Access
On Sept. 13, 2021, Google will apply a security update to make file-sharing links more secure. This update will change the links used for accessing some files in individual Google Drive and Google Shared drives.
If your files are affected by this change, starting July 26, 2021, you'll receive an email notification from Google with information about how to update your files.
After Sept. 13, anyone who has previously viewed the files or who has direct access to the files should be able to continue accessing them. However, others who haven’t yet viewed the files may need to request access.
For more about the upcoming change, view this Google workspace update.