All-A-WeB$

There has been more than one story in the news recently about Twitter accounts being hijacked. The most recent examples of note include the accounts of Britney Spears and famed blogger/entrepreneur Guy Kawasaki. These issues have highlighted some potential dangers of using the service, or really social networks in general. Have you encountered security issues with Twitter or other social networks?
While twitter is currently used to spread malware, it's a perfect platform to commit fraud as well. Followers trust the messages that come from the person they follow, while in reality the message could be spam trying to convince followers to fall to a scam. A very simple example would be a request to donate a small amount of money to charity (for example to support the situation in Iran). The link would go to a fraudulent website that records credit card numbers. A high profile account that sends such a message could result in hundreds of thousands of compromised credit cards.

To secure their Twitter presence, users needs to take several actions:

1. Protect their twitter credentials - users need to be vigilant and keep on the look out for Twitter phishing attacks, and pharming (DNS poisoning) attacks. Users can install client side security tools that ensure they are only providing their Twitter credentials to the genuine twitter website. In doing so, they will protect their credentials against keyloggers or malicious browser plug-ins ("man in the browser" attacks).

2. Control and protect their twitter information. As tempting and convenient as it may be, using 3rd party applications and services that enhance Twitter may increase the exposure of users to abuse. Every website which is allowed to automatically post to a user's Twitter account adds attack surface that criminals may exploit. 

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