Let me put it this way. If I am a business and if I knew that there is an easy way for a hacker to reach the documents I am sharing to selected few publicly (th

Let me put it this way. If I am a business and if I knew that there is an easy way for a hacker to reach the documents I am sharing to selected few publicly (the key point here is the EASY WAY TO GET to my account), I will be worried about sharing my documents through that service. I do agree that any publicly shared document in any service is vulnerable but the question here is the ease at which it could be found in a service.