What Happens When You Delete A Photo Online

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Just because you hit delete doesn’t mean your photo is gone.  Why?  According to this article:

“The problem relates to the way data is stored on large websites: While your personal computer only keeps one copy of a file, large-scale services like Facebook rely on what are called content delivery networks to manage data and distribution. It’s a complex system wherein data is copied to multiple intermediate devices, usually to speed up access to files when millions of people are trying to access the service simultaneously. (Yahoo! Tech is served by dozens of servers, for example.) But because changes aren’t reflected across the CDN immediately, ghost copies of files tend to linger for days or weeks.

In the case of Facebook, the company says data may hang around until the URL in question is reused, which is usually “after a short period of time.” Though obviously that time can vary considerably.”

So, the moral of the story is of course, don’t put embarassing pictures of yourself or others online!  As soon as they leave your desktop, they are out there.  If you aren’t really sure you should, DO NOT DO IT!  That is all.

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