threat modeling

Ethonomethodologists talk a lot about communities of practice. Groups of people who share some set of work that they do similarly, and where they’ll co-evolve ways of working and communicating. When everyone is part of a given community, this works really well. When we talk about “think like an attacker” within a community of security…

Read More Boundary Objects and Threat Modeling

I’m in Barcelona, where my employer has made three announcements about our Security Development Lifecycle, which you can read about here: “SDL Announcements at TechEd EMEA.” I’m really excited about all three announcements: they represent an important step forward in helping organizations develop more secure code. But I’m most excited about the public availability of…

Read More SDL Announcements

John Kelsey had some great things to say a comment on “Think Like An Attacker.” I’ve excerpted some key bits to respond to them here. Perhaps the most important is to get the designer to stop looking for reasons attacks are impossible, and start looking for reasons they’re possible. That’s a pattern I’ve seen over…

Read More The Discipline of "think like an attacker"

Steven Murdoch and Robert Watson have some really interesting results about how to model the Tor network in Metrics for Security and Performance in Low-Latency Anonymity Systems (or slides). This is a really good paper, but what jumped out at me was their result, which is that the right security tradeoff is dependent on how…

Read More Privacy Enhancing Technologies and Threat Modeling