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Re:"Keep Moving": Marissa Mayer's First Memo to Yahoos by citricsquid on Friday July 20, 2012 @03:49AM (#4269868)
An idea for companies sending out "do not forward" memos:

Have specific words in the memo (eg: first adjective in paragraph #1, verb in paragraph #2 and adjective in sentence #5) and use combinations of randomly selected words (or punctuation) to create a "signature" for each recipient. Would be easy enough to do automatically. For example employee #1 gets "This move is great for the company..." and employee #2 gets "This move is brilliant for the company..."

Although I guess if you need to do such a thing you have bigger problems and if employees know such a thing is done then they'll obfuscate their own memos when sharing.

Re:"Keep Moving": Marissa Mayer's First Memo to Yahoos by spicyj on Friday July 20, 2012 @03:56AM (#4269882)
Presumably they might already attempt to do this -- the article reads:

> I took that to heart in tracking down this do-not-forward-oops memo — which I changed around a bit to thwart those who try to stop me from getting these emails via tricky computer programs — so enjoy.

Re:"Keep Moving": Marissa Mayer's First Memo to Yahoos by slig on Friday July 20, 2012 @07:19AM (#4270256)
It's been done. There's a link on HN few years ago about a company doing exactly that. Can't find it now, though.
Re:"Keep Moving": Marissa Mayer's First Memo to Yahoos by fleitz on Friday July 20, 2012 @03:53AM (#4269877)
I think it's better to make even more subtle changes like replacing some normal spaces with non-breaking spaces, or using digraphs in some words and not in others.
Re:"Keep Moving": Marissa Mayer's First Memo to Yahoos by ben0x539 on Friday July 20, 2012 @04:20AM (#4269939)
That sounds easier to mechanically revert, though.