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					Send Self-Destructing Messages with
Google Docs
You can send passwords and other private information as self-destructing messages in Google
Docs that will vanish after being read.


Would you like to send a confidential note to a friend that self-destructs after it has been read so
that no one else (including your friend) can ever see that secret note again? Maybe it has a
password that shouldn’t be stored anywhere. Or you are worried that the private note can get
leaked online.


There are web apps – like Burn Note and Privnote - that offer an easy solution. They essentially
create a temporary web page that auto-expires after it has been viewed once. Dashlane is
another app also lets you send encrypted notes from the desktop and the recipient gets 30
minutes of reading time after which the note will vanish forever.
Alternatively, you can even use Google Docs to send secret, self-destructing messages to anyone
in few easy steps. Here’s a quick video demo:


Self-Destructing Messages in Google Docs
It takes a minute to convert a Google Docs sheet into a self-destructing one.


Click here to make a copy of the Google sheet in your own account. Once the sheet is auto-
cleared, type your secret message anywhere inside the sheet and hit the Share button to send it
to a friend. Make sure the permission is set to “Can Edit” in the sharing window.
Your friend opens the sheet, reads the message and after 10 seconds, the entire sheet on his
screen will clear itself. If you wish to send another self-destructing message, create a copy of the
original sheet and repeat the steps.


How does it work?
The trick is simple. We have an onOpen trigger attached to the Google sheet that becomes active
as soon as the sheet is opened. This trigger waits for 10 seconds (Utilities.sleep) and then runs
the clear() command to empty all the cells of the sheet.


Here’s the Google Apps Script code that actually makes your “secret message” vanish.

				
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posted:10/16/2012
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