File Sharing Tools

• Dropbox.
• Google Docs.
• OneDrive.
• OneDrive for Business.
• Hightail (formerly YouSendIt)
• SAFE. AMRDEC Safe Access File Exchange (SAFE) is designed to provide AMRDEC and its customers an alternative way to send files other than email. SAFE supports file sizes up to 2 GB and is authorized for up to unclassified data, to include Privacy Act data. As of December 2018, the AMRDEC SAFE site has been shutdown. Use the ARL site (PII/PHI not allowed).
• ARL SAFE.  
• DISA Secure File Gateway (SFW) Relay Service
• DoD Secure File Sharing Tools on milSuite
• Send Anywhere. Supports iOS, Android, web, and desktop client for macOS and Windows. Free (with ads), $5.99/month for Pro. Retrieve files using a 6-digit code, QR code, or link. Expires after 48 hours. Not sure if that is configurable.

Other resources:

• ​​"Moving Large Files Fast with Signiant and Microsoft Azure," 5 AUG 2015​. Channel 9.