Twitter has rapidly become one of the most popular social media and microblogging services on the internet. Unfortunately, in the Web world, popularity often leads to increased security concerns. Twitter has also become a popular tool with cyber criminals, who are increasingly using it as a vessel to spread malware. This past weekend, Twitter users were hit with a phishing scam that caught many off guard. (Attacks on social networks tripled in 2009, read more here)The innocuous sounding message included a link that, if clicked, led to a spoofed Twitter login page. Anyone who logged in via that page would have had their Twitter account credentials stolen. Those victims then had the same message tweeted out to their contacts, thus causing exponential spread of the phishing attack. The messages sent were similar to the following: Lol , this is funny Lol. this is me?? Lol. this you??