Adversaries may exfiltrate data to a cloud storage service rather than over their primary command and control channel. Cloud storage services allow for the storage, edit, and retrieval of data from a remote cloud storage server over the Internet.

Examples of cloud storage services include Dropbox and Google Docs. Exfiltration to these cloud storage services can provide a significant amount of cover to the adversary if hosts within the network are already communicating with the service. 
Exfiltration to Cloud Storage
source_name: mitre-attack  url: https://attack.mitre.org/techniques/T1567/002  external_id: T1567.002     