When using Google Drive or Dropbox, metadata can disclose patterns regarding your activity, even if your files are encrypted.
Insider threats pose a risk as employees or hackers with access to cloud storage firms may be able to access your files.
User misconfigurations can lead to accidental exposure of files to the public, compromising sensitive data.
Although Google Drive and Dropbox encrypt files, they hold the encryption keys, which can raise concerns for those working with extremely sensitive information.