A privacy problem has been discovered in Google Drive, which could have resulted in sensitive personal or corporate information stored on the cloud service being accessed by unauthorised parties.
According to Graham Cluley, writing for Collaborista, the security hole, which has now been patched by Google, existed if you stored files that included a clickable URL on your cloud file sharing service and if someone (you have shared permissions with to access the file) opens the file on the Web-based service and clicks on the embedded hyperlink, then the owner of the third-party website being linked to could receive a referrer URL. Ifthey accessed that URL, they could potentially access your sensitive information.