Lookout

San Francisco start-up Lookout is launching this week. Shown here is co-founder and CEO John Hering at the company's offices in downtown San Francisco.

The Lookout software runs on mobile phones, offering antivirus and firewall protection, as well real-time cloud-based backup, the ability to locate missing devices, and manage many devices. The service is currently in private beta in more than 170 countries across 400 mobile networks, says Hering.