Cybersecurity

The Cycle of E-Mail Security

Stepping back from the DMARC arguments, it occurs to me that there is a predictable cycle with every new e-mail security technology... Someone invents a new way to make e-mail more secure, call it SPF or DKIM or DMARC or (this month's mini-fiasco) PGP in DANE. Each scheme has a model of the way that mail works. For some subset of e-mail, the model works great, for other mail it works less great. more

EuroDIG Sessions on Friday, June 5, about Cybersecurity, Network Neutrality, IANA, Access and More

What do Europeans interested in Internet policy think about cybersecurity, network neutrality, IANA, improving Internet access and other topics? Tomorrow the second day of the European Dialog on Internet Governance (EuroDIG) 2015 in Sofia, Bulgaria, will cover all those topics and many more. I've listed some of the sessions that either I or my Internet Society colleagues are participating in. I will personally be involved as a panelist on the two sessions about cybersecurity. more

Facebook and PGP

Facebook just announced support for PGP, an encrypted email standard, for email from them to you. It's an interesting move on many levels, albeit one that raises some interesting questions. The answers, and Facebook's possible follow-on moves, are even more interesting. The first question, of course, is why Facebook has done this. It will only appeal to a very small minority of users. Using encrypted email is not easy. more

Registry Lock - or EPP With Two Factor Authentication

For the last couple of years, the most common attack vector against the DNS system is the attack against the registrar. Either the attack is on the software itself using weaknesses in the code that could inject DNS changes into the TLD registry, or social engineering the registrar support systems and the attacker receives credentials that in turn allows the attacker to perform malicious changes in DNS. DNSSEC is the common security mechanism that protects the DNS protocol, but by using the registrar attack, any changes will result in a proper working DNS delegation. more

The Internet of Things: Solving Security Challenges from the Fringe to the Core

News flash: to help fight California's drought, Samsung is offering a $100,000 prize to the innovator who creates "the most effective use of IoT and ARTIK [Samsung's IoT platform] technology for reducing water consumption by individuals or municipalities." When the average reader of this news headline needs no explanation of what "IoT" means or what this contest is about, we know IoT, or the Internet of Things, is for real. There are already an estimated 25 billion connected devices around the world, according to expert estimates. more

The Longevity of the Three-Napkin Protocol

It is not often I go out to my driveway to pick up the Washington Post -- yes, I still enjoy reading a real physical paper, perhaps a sign of age -- and the headline is NOT about how the (insert DC sports team here) lost last night but is instead is about an IT technology. That technology is the Border Gateway Protocol (BGP), a major Internet protocol that has been around for more than a quarter century, before the Internet was commercialized and before most people even knew what the Internet was. more

Hacking: Users, Computers, and Systems

As many people have heard, there's been a security problem at the Internal Revenue Service. Some stories have used the word hack; other people, though, have complained that nothing was hacked, that the only problem was unauthorized access to taxpayer data but via authorized, intentionally built channels. The problem with this analysis is that it's looking at security from far too narrow a perspective... more

Phishing in the New gTLDs

The new Anti-Phishing Working Group (APWG) Global Phishing Survey has just been released. Written by myself and Rod Rasmussen of IID, the report is the "who, what, where, when, and why" look at phishing, examining the second half of 2014. The report has many findings, but here I'll concentrate on the new gTLDs. The second half of 2014 was when an appreciable number of new gTLDs entered general availability and started to gain market share. more

Trust and Collaboration - Key Features for the Internet’s Future

Last week, Columbia University's School of International and Public Affairs (SIPA), in collaboration with the Global Commission on Internet Governance (GCIG), hosted a conference on Internet governance and cybersecurity. The conference gathered a variety of experts to discuss issues pertaining to Internet governance, human rights, data protection and privacy, digital trade, innovation and security. more

Diving Into the DNS

If you are at all interested in how the Internet's Domain Name System (DNS) works, then one of the most rewarding meetings that is dedicated to this topic is the DNS OARC workshops. I attended the spring workshop in Amsterdam in early May, and the following are my impressions from the presentations and discussion. What makes these meetings unique in the context of DNS is the way it combines operations and research, bringing together researchers, builders and maintainers of DNS software systems, and operators of DNS infrastructure services into a single room and a broad and insightful conversation. more