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3. The deletion problem ----------------------- A further privacy issue surrounding e-mail involves what happens when you delete an e-mail message. You might expect that deleting an e-mail message removes it irretrievably. This is often not
case. though.
In fact, it's a tough job to delete every copy of a piece of e-mail. There are many ways that a "deleted" e-mail message might still be accessible:
1. Daily or weekly backups of
mail server may still contain messages that were subsequently deleted.
2. When you delete an e-mail message, many e-mail programs simply move it to a trash folder, rather than actually deleting it. It's not until you select their "Empty
Trash" command (or similar) that
message is actually deleted.
3. Even after you empty your trash folder, many network-based e-mail programs still archive deleted messages for a period of time before deleting them. During this archival period (30-90 days is typical)
message could be available to unscrupulous or unauthorised individuals.
4. Even after a file is deleted from a computer's hard disk,
information is often still available until that portion of
disk's surface is overwritten with new information. During this period
deleted files could be available to unscrupulous individuals with physical access to
computer.
5. Even if you take steps to avoid all
potential problems above, remember that
e-mail message is probably still available on
PC of
person you sent it to (or who sent it to you).
4. Conclusions -------------- The moral of this story is clear: e-mail is not a private medium. Don't send messages by e-mail unless you're comfortable assuming that they may be read by people other than
intended recipients.
So next time you go to press that "Send" button, ask yourself "Am I okay with this being seen publicly?" If not, pick up
phone!
