12:00 PM Jan 3, 2014
Snapchat co-creators Bobby Murphy, left, and Evan Spiegel are seen through a window at the company's offices in Venice, Calif., in May 2013. (Genaro Molina/Los Angeles Times/MCT)
(MCT) – Days after being warned of a security weakness in its popular mobile application, Snapchat became the target of a widespread cyberattack that affected millions of users, a black eye for a startup with sky-high hopes of becoming the next social media juggernaut.