From WIRED · David Nield · · 2m
Audit your cloud storage links now
Shared files in Google Drive, OneDrive, iCloud and Dropbox can linger indefinitely. Here's how to find and revoke them.
In brief
Shared files in Google Drive, OneDrive, iCloud and Dropbox can linger indefinitely. Here's how to find and revoke them. Cloud storage links you've shared can pose security risks if they spread beyond intended recipients. Each service offers different tools to audit and revoke access. Originally reported by WIRED.
Why shared links matter
Cloud storage links let you share files instantly with anyone worldwide. But the longer they stay active, the bigger the security risk if they reach unintended recipients.
The risk grows over time
Shared links are well protected by default, but risks increase as they linger. Your links could be mistakenly forwarded in an email, or a contact's account could be hacked.
Audit your OneDrive shares
In Microsoft OneDrive, click Shared, then By you to see everything you've shared. Click the three dots next to any file, then Manage access to revoke permissions.
OneDrive expiration dates
When sharing a file in OneDrive on the web, click the cog icon on the Share panel to set an expiration date for the sharing link automatically.
Check your iCloud shares
In iCloud Drive, click Shared in the navigation pane to see files you're sharing. Click the three dots next to any file, then Managed Shared File to change permissions.
iCloud has no expiry option
Unlike OneDrive, iCloud doesn't offer expiration dates for shared links. You must manually clear them up by clicking Stop sharing when you're done.
Dropbox reminds you to review
Dropbox is aggressive about tidying shared links and sends reminders to review files you've shared. Click Shared in the left navigation pane to see current shares.
Dropbox link expiry works
Dropbox offers link expiry features when you share files or folders. Set an expiration date in the share settings to automatically revoke access after a set time.
Google Drive lacks easy auditing
Google Drive has no easy list of everything you've shared. Click the People filter and choose Anyone with the link to see files shared via simple links, then revoke access manually.
The short version
Cloud storage links you've shared can pose security risks if they spread beyond intended recipients. Each service offers different tools to audit and revoke access.
