The Department of Homeland Security kicked off its new computer security campaign called “Stop. Think. Connect.” on Monday as part of National Cyber Security Awareness month.

Computer security is a nice thing and having more of it is

Twitter CEO Evan Williams announced Monday that he was stepping aside to focus on product strategy, elevating COO Dick Costolo to the top role at the messaging service.

The move bore no earmarks of a shakeup at Twitter but rather a common step in the maturation process of a startup lucky enough to get out of the garage and gain