TWiT

Security Now - 16k MP3

Steve Gibson, the man who coined the term spyware and created the first anti-spyware program, creator of Spinrite and ShieldsUP, discusses the hot topics in security today with Leo Laporte. Records live every Tuesday at 4:30pm Eastern / 1:30pm Pacific / 20:30 UTC.

Author

TWiT

Category

Technology

Podcast website

twit.tv

Latest episode

Aug 27, 2025

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Episodes

SN236: Listener Feedback #86 19.02.2010

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.

SN235: Machine Language 12.02.2010

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.

SN234: Listener Feedback #85 05.02.2010

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.

SN233: Let's Design a Computer (part 1) 29.01.2010

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.

SN232: Listener Feedback #84 22.01.2010

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.

SN231: Mega Security Update & CES Observations 15.01.2010

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.

SN230: Listener Feedback #83 08.01.2010

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.

SN229: The Rational Rejection of Security Advice 01.01.2010

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.

SN228: Listener Feedback #82 25.12.2009

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.

SN227: Cyberwarfare 18.12.2009

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.

SN226: Listener Feedback #81 11.12.2009

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.

SN225: "Same Origin" Troubles 04.12.2009

This week Leo and I plow into the little understood and even less known problems that arise when user-provided content — postings, photos, videos, etc. — are uploaded to trusted web sites from which they are then subsequently served to other web users.

SN224: Listener Feedback #80 27.11.2009

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.

SN223: A security vulnerability in SSL 20.11.2009

This week Leo and I plow into a recently discovered serious vulnerability in the fundamental SSL protocol that provides virtually all of the Internet's communications security: SSL - the Secure Sockets Layer. I explain exactly how an attacker can inject his or her own data into a new SSL connection and have that data authenticated under an innocent client's credentials. (That's not good.)

SN222: Listener Feedback #79 13.11.2009

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.

SN221: The Oxymoron of "JavaScript Security" 06.11.2009

This week Leo and I are joined by author (The Geek Atlas) and software developer John Graham-Cumming to discuss many specific concerns about the inherent, designed-in, insecurity of our browser's JavaScript scripting language. Now 14 years old, JavaScript was never meant for today's high-demand Internet environment — and it's having problems. John's original presentation slides in Microsoft PowerP...

SN220: Listener Feedback #78 30.10.2009

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.

SN219: Badly Broken Browsing 23.10.2009

In preparation for episode #221's guest, John Graham-Cumming, who will take us on a detailed walk-through of the JavaScript language's security problems, this week Leo and I examine the sad and badly broken state of web browsing in general, and how we got to where we are.

SN218: Listener Feedback #77 16.10.2009

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.

SN217: The Fundamentally Broken Browser Model 09.10.2009

Alex and I discuss the serious security problems created by the way SSL connections are specified by non-secured web pages, and how easily a "man in the middle" attack can compromise this amazingly weak web-based security.

SN216: Listener Feedback #76 02.10.2009

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.

SN215: Security Maxims 25.09.2009

Leo and I discuss the first portion of a collection of pithy and apropos "Security Maxims" that were assembled by a member of the Argonne Vulnerability Assessment Team at the Nuclear Engineering Division of the Argonne National Laboratory, U.S. Department of Energy. They're great!

SN214: Listener Feedback #75 18.09.2009

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.

SN213: Cracking GSM Cellphones 11.09.2009

Leo and I discuss the state of GSM (Global System of Mobile communications) cracking. I show where to purchase the required hardware, from where to download the software, and just how easy and practical it has become to "crack" the old and very weak "security" employed by the three billion cellphones now in worldwide use.

SN212: Listener Feedback #74 04.09.2009

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.

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