Google gives always good security for our google account. As well as he give a free 25 Gb Storage on internet for each account. After a couple of months ago people use google drive for just like save document but many people not use this because they says why we store online and that need always internet to see our data on our phone but they not understand we can access that data any ware world wide.
Now Google Developer import one good think like this for attraction of Google Drive when you sent mail any person with the attachment file more than 25MB so you need to upload this file first on google drive and after that file link attach with your mail automatically and your file sent successfully but many people says its worst . Only those people understand who need his data in one location. I want to tell you that Google this put restriction upload first on google drive and then you sent your mail its the best thinking I ever seen that is if you sent email with that file and that file unfortunately delete form your phone or laptop so you can get that file in google drive no need to search in your sent mail list. This idea I really like of use of google drive.
Google drive also you can use for share link of online file that already uploaded in google drive of other global account. You just need to do one think search on google that file download form google drive and you get download file location if you are busy and you want to download that file letter so you just click on share with my drive and that it. This file you can see in your google drive no need to search more and more and as well as no need to check that in your history in browser pages.
Here you can also see your google+ post data as well as you are writing blogs on google blogger site then you also see here picture that you upload in your blogs as well as you can save here your whats app data backup.
If you want to share any file like internet for access all member so you just change your file permission and select option share with global that simple and you just share file so any one can download that file.
Many people save his contact on google account and after that they search on google drive own contact but I want to tell you that all contact you see in your google+ account.
Try it very secured and easy to access.You can see my account attachments I am also using this storage.