Photos: The look and feel of RSA Conference 2011

RSA Conference 2011 at a glance: presentations and mingling on the expo floor.

Qualys Chairman and CEO Philippe Courtot announcing Qualys news.

A security game show at the Symantec booth.

Sourcefire brought a taste of Las Vegas to the San Francisco show floor.

A well-attended presentation at the Sophos booth.

Hardware and software on display.

Mike Shema, senior security engineer at Qualys demoing their new products.

Expo attendance of the first day was quite high.

Cars are big at RSA Conference this year.

Sumedh Thakar, the VP of Engineering for Qualys showcasing their new products.