Leading Experts
A friend of mine recently asked for my thoughts on leading people who have more experience or expertise in a topic than they do; this is an important question and one that I felt deserved more thought and exploration. Leading people can be difficult, but when leading people that know more than you do about a given topic, it’s a different challenge. This was particularly well-timed, as I’ve found myself in just that situation, as I’ve just hired a specialist in incident response.
Read more…Developers, Developers, Developers
Note: This was written in 2012, but not published at the time. The point is still valid, perhaps moreso than ever and deserves to be made publicly. The content has been updated as appropriate, though the core of this article remains intact from the 2012 draft. I would like to note that this doesn’t apply to every environment, there are some where developers are very knowledgeable about security, and write code with minimal issues – my current employer happens to be one of those rare & exciting places.
Read more…Write Like You Are Running Out of Time
The cultural phenomenon that is Hamilton, brought back to the forefront due to its streaming release, is an artistic feat, but it also serves as an opportunity to refresh our memories on the history behind these characters, and look for opportunities to learn lessons that apply today. This is exactly what I’ve been doing. For all of his flaws, one thing that I have to respect about Alexander Hamilton (as well as his wife, Eliza) is the understanding of the long-term impact of the written word.
Read more…Dezinformatsiya
I recently wrote a review on Active Measures by Thomas Rid – which helped me to solidify my thoughts on social media, and the impact it has on society. While Active Measures is focused on disinformation campaigns, it also speaks to the vulnerabilities in humans that allow these campaigns to work. Disinformation is a substantial issue today, and not just in terms of election interference, public health, or international relations – but also in much smaller scale unorganized efforts to alter perception.
Read more…Utilitarian Nightmare: Offensive Security Tools
Or: Ethical Decision Making for Security Researchers. There has been much discussion recently on the appropriateness of releasing offensive security tools to the world – while this storm has largely come and gone on Twitter, it’s something I still find myself thinking about. It boils down to a simple question, is it ethical to release tools that make it easy for attackers to leverage vulnerabilities that they wouldn’t otherwise be able to?
Read more…Bitcoin is a Cult
The Bitcoin community has changed greatly over the years; from technophiles that could explain a Merkle tree in their sleep, to speculators driven by the desire for a quick profit & blockchain startups seeking billion dollar valuations led by people who don’t even know what a Merkle tree is. As the years have gone on, a zealotry has been building around Bitcoin and other cryptocurrencies driven by people who see them as something far grander than they actually are; people who believe that normal (or fiat) currencies are becoming a thing of the past, and the cryptocurrencies will fundamentally change the world’s economy.
Read more…Looking for value in EV Certificates
When you are looking for TLS (SSL) certificates, there are three different types available, and vary widely by price and level of effort required to acquire them. Which one you choose impacts how your certificate is treated by browsers; the question for today is, are EV certificates worth the money? To answer this, we need to understand what the differences are just what you are getting for your money. The Three Options For many, the choice of certificate type has more to do with price than type – and for that matter, not that many people even understand that there are real differences in the types of certificates that a certificate authority (CA) can issue.
Read more…On the need for an open Security Journal
The information security industry, and more significantly, the hacking community are prolific producers of incredibly valuable research; yet much of it is lost to most of those that need to see it. Unlike academic research which is typically published in journals (with varying degrees of openness), most research conducted within the community is presented at a conference – and occasionally with an accompanying blog post. There is no journal, no central source that this knowledge goes to; if you aren’t at the right conference, or follow the right people on Twitter, there’s a great chance you’ll never know it happened.
Read more…Threat Modeling for Applications
Whether you are running a bug bounty, or just want a useful way to classify the severity of security issues, it’s important to have a threat-model for your application. There are many different types of attackers, with different capabilities. If you haven’t defined the attackers you are concerned about, and how you deal with them – you can’t accurately define just how critical an issue is. There are many different views on threat models; I’m going to talk about a simple form that’s quick and easy to define.
Read more…When Hashing isn’t Hashing
Anyone working in application security has found themselves saying something like this a thousand times: “always hash passwords with a secure password hashing function.” I’ve said this phrase at nearly all of the developer events I’ve spoken at, it’s become a mantra of sorts for many of us that try to improve the security of applications. We tell developers to hash passwords, then we have to qualify it to explain that it isn’t normal hashing.
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About Me
Security researcher, engineer and software developer with more than 20 years of experience.
Work: I primarily focus on application security, usable security, secure communications, and cryptography. I build and lead strong and dynamic teams, who cover all facets of security and privacy.
Writing: I write about my research, security in general, development and software design, and leadership through my blog, essays, and various publications. I also engage in some creating writing when I can.
Photography: I am a purist fine art photographer, working primarily in black & white, and focused on sharing new perspectives of the world. Limited edition prints of my work are available on my online gallery. I also have a background in photojournalism, and volunteer in this field when I can.