10 File Sharing Security Best Practices for 2026
From password-protecting links to setting expiry dates, here are the 10 security habits every person sharing files online should adopt.
File sharing is one of the most common and most overlooked attack surfaces in any organisation. The same action — clicking "Share" — can be perfectly secure or a serious data breach depending on how it's done. Here are 10 practices that eliminate the most common risks.
1. Always Use Password-Protected Links for Sensitive Files
A bare public link is accessible to anyone who has it or guesses it. Password protection means even if the URL is forwarded or leaked, recipients need the password to access the file. Available on TiniDrop's paid plans.
2. Set Expiry Dates
Every file link should have an expiry date. Temporary links limit the window of exposure. Even non-sensitive files don't need to live forever online.
3. Use Download Controls
For confidential previews — a design mockup, a financial model — disable the download option. Recipients can view but not save a local copy. This reduces the risk of forwarded copies.
4. Verify the Recipient Before Sharing
Double-check email addresses before sharing sensitive files. A typo — "john@client.com" instead of "john@client.co" — can send a confidential document to a stranger or a phishing domain.
5. Avoid Email Attachments for Large or Sensitive Files
Email is not secure. Emails sit in inboxes indefinitely, are often backed up by corporate email archiving systems, and are a prime phishing target. Use a secure file link instead and revoke access when the work is done.
6. Use Different Links for Different Recipients
If you need to track who accessed what, generate a separate link per recipient. This creates an audit trail and lets you revoke access for one recipient without affecting others.
7. Scan Files Before Uploading
Always scan files received from third parties before re-uploading or forwarding them. A PDF sent to you by a client could contain embedded malicious content.
8. Audit Your Shared Links Regularly
Review active links in your dashboard quarterly. Revoke any that are no longer needed. Stale links are a common source of data exposure in breach investigations.
9. Use HTTPS — Always
Never share files via a platform that uses plain HTTP. All files on TiniDrop are served over HTTPS with TLS encryption in transit.
10. Educate Your Team
The weakest security link is always human behaviour. Run a quick annual training on file sharing hygiene: what not to share, which platforms are approved, and what to do if they accidentally share something they shouldn't have.
Ready to share your files?
Drop any file and get a shareable link in seconds. No account needed.
Try TiniDrop free →