Penn+Box is a cloud-based collaboration service for securely managing and sharing files and folders within the Penn community and externally. You can find information about Penn+Box and login via the below website:
https://www.isc.upenn.edu/pennbox

Most types of data can be stored on Penn+Box. Please consult the below link to see if the information you are planning to share are covered:
https://www.isc.upenn.edu/security/data-box-amazon

The FAQ's have information regarding setting up an account:
 https://www.isc.upenn.edu/how-to/pennbox-faq

Please note, a user must first setup their account in Penn+Box before you can collaborate with them.