Data Breach Defense: Multifactor Authentication

Criteria Cubbit Filen Mega ProtonDrive Sync
Available free storage 1 GB 10 GB 20 GB Shared with your email storage 5 GB
Open Source? No Client Client No No
Multifactor authentication offered? No Yes Yes Yes Yes
Addtional notes Peer-to-peer Concerns raised about encryption implementation. No apps, web only Audited
Free account signup link is hidden Still in beta, expect bugs