If you are a BIG user, you may login here:

Login
Avoid having to verify your email address,
and drop-off files to non-BIG users.
 

Anyone may perform the following activities:

Drop-off
Drop-off (upload) a file for a BIG user (email verification required).
Pick-up
Pick-up (download) a file dropped off for you.
 
BIG users: you may login with your username and password and send files to anyone, in or out of BIG.
Non-BIG users: you cannot log in, but can still send files to BIG users if you know their email address. Start by clicking the "Drop-off" button.
BIG users who wish someone outside BIG to send them files, can make it a lot easier for them by logging in and clicking "Request a Drop-off". That saves the other person having to prove who they are. The request created will be valid for 7 days.
 
BIG ZendTo is a service to make it easy for you to move files, including large files up to 4.0 GB, in and out of BIG.
 
How secure is BIG ZendTo?

Files are automatically deleted from BIG ZendTo 14 days after you upload them.