The Twitter “Don’t Click” clickjacking stampede

Graham Cluley
@gcluley

Yesterday, many Twitter users were swamped with messages saying “Don’t Click”, pointing to what appeared to be a web link.

Naturally, humans being what they are, the “Don’t Click” got clicked on. A lot.

Bzzt. That wasn’t a good idea, because when they they did a Tweet was sent from their own account with the same “Don’t Click” message and link.

The tweetosphere was soon awash with “Don’t click” messages, followed by people panicking that they hadn’t knowingly sent the message.

Undoubtedly many people clicked on the link because they believed it had been knowingly posted by their friends on Twitter – a healthy reminder for people to be more cautious of how they behave on social networks.

Not everyone who clicked fell foul, of course. For instance, users of the Firefox web browser who were sensible enough to have installed the NoScript plug-in had the clickjacking attempt intercepted:

(NoScript image source: Read more in my article on the Naked Security website.

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Graham Cluley is a veteran of the anti-virus industry having worked for a number of security companies since the early 1990s when he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows. Now an independent security analyst, he regularly makes media appearances and is an international public speaker on the topic of computer security, hackers, and online privacy. Follow him on Twitter at @gcluley, or drop him an email.