Today we're talking with Michael Kaiser from the National Cyber Security Alliance. His organization is sponsoring the Two Steps Ahead Tour, where they are traveling to cities throughout the United States to encourage people to begin using two-factor authentication for their email and social media accounts. Protecting yourself online is incredibly important, especially given just how vulnerable our passwords are. Two factor authentication is very easy to set up on most services. Here's a video I made two years ago about setting it up on Google accounts: http://lon.tv/uwyku

I spoke with Chris Bross from DriveSavers, a data recovery firm, about flash memory. Flash chips are in just about everything we use these days, from cameras, to smartphones to laptops. Chris talks about how flash memory works, its long term reliability, and what happens when the chips wear out from too much use.