Google Closes Presentations Security Flaw After 15-Hour Breach

What are you looking at? You’re looking at a small selection of the email addresses I harvested from innocent readers of this blog and others, thanks to a security flaw in Google’s new presentation feature in Google Docs. The list that clip was taken from has 450 email addresses in total. Here’s almost the whole list, way too pixelated for anyone to read:

So, how did this happen?
Google Presentations has a chat feature, based on Google Talk technology, that lets people chat while viewing a presentation. I embedded a presentation here, as did Matt Cutts on his blog, and a number of people linked to it. Everyone who went to that Presentation and logged into their Google Account to chat gave their email address to me and to every other visitor to the chat, without even knowing it.
The reason is that Presentations logs your chats, just […]

Original post by Nathan Weinberg