After starting at the very beginning two weeks ago by looking at how resistors and transistors can be used to assemble logical functions, this week Steve and Leo use those functions to build a working digital computer that understands a simple but entirely useful and workable machine language.

Leo and I discuss the week's major security events and discuss questions and comments from listeners of previous episodes. We tie up loose ends, explore a wide range of topics that are too small to fill their own episode, clarify any confusion from previous installments, and present real world 'application notes' for any of the security technologies and issues we have previously discussed.

To understand the advances made during 50 years of computer evolution, we need to understand computers 50 years ago. In this first installment of a new Security Now series, we design a 50 year old computer. In future weeks, we will trace the factors that shaped their design during the four decades that followed.

Leo and I discuss the week's major security events and discuss questions and comments from listeners of previous episodes. We tie up loose ends, explore a wide range of topics that are too small to fill their own episode, clarify any confusion from previous installments, and present real world 'application notes' for any of the security technologies and issues we have previously discussed.

Leo and I catch up on two busy weeks of security news with a "mega security news update" . . . and Steve, who watched Leo's streaming video coverage of CES, weighs in with his own discoveries and findings from the big annual consumer electronics fest.

Leo and I discuss the week's major security events and discuss questions and comments from listeners of previous episodes. We tie up loose ends, explore a wide range of topics that are too small to fill their own episode, clarify any confusion from previous installments, and present real world 'application notes' for any of the security technologies and issues we have previously discussed.

Leo and I turn everything around this week to question the true economic value of security advice. We consider the various non-zero costs to the average, non-Security Now! listener. We compare those real costs with the somewhat unclear and uncertain benefits of going to all the trouble of following, sometimes painful, maximum security advice.

Leo and I discuss the week's major security events and discuss questions and comments from listeners of previous episodes. We tie up loose ends, explore a wide range of topics that are too small to fill their own episode, clarify any confusion from previous installments, and present real world 'application notes' for any of the security technologies and issues we have previously discussed.

Leo and I examine the amorphous and difficult-to-grasp issue of nation-state sponsored cyberwarfare. We examine what it means when nations awaken to the many nefarious ways the global Internet can be used to gain advantage against international competitors and adversaries.

Leo and I discuss the week's major security events and discuss questions and comments from listeners of previous episodes. We tie up loose ends, explore a wide range of topics that are too small to fill their own episode, clarify any confusion from previous installments, and present real world 'application notes' for any of the security technologies and issues we have previously discussed.