Cybersecurity

Getting a Handle on IDNs

Internationalized Domain Names or IDNs are back in the news. ICANN recently released a document entitled "Proposed Final Implementation for IDN ccTLD Fast Track Process"... In a nutshell, ICANN has now offered a path toward authorizing the adoption of ccTLDs in many countries' native languages. This marks a welcome advance for millions of Internet users who do not speak English or who do not use another language covered by ASCII. But with this advance comes some concerns. more

New Nails in the Crypto-Anarchism Containment Coffin

Crypto-anarchism (or crypto-anarchy) is a form of anarchy accomplished through computer technology. Crypto-anarchists develop and employ their own cryptographic techniques to prevent knowledge of the information or even the identity of parties communicating over networks. The motivations vary - from just having fun and causing turmoil, to achieving perceived status within a crypto-anarchy community, to furthering socio-economic views about information availability, absolute privacy, political advocacy and spreading anti-government paranoia. more

The FBI and Scotland Yard vs. Anonymous: Security Lessons

A lot of people are fascinated by the news story that Anonymous managed to listen to a conference call between the FBI and Scotland Yard. Some of the interest is due to marvel that two such sophisticated organizations could be had, some is due to schadenfreude, and some is probably despair: if the bad guys can get at these folks, is anyone safe? more

Protecting Customer Data

There have been a number of reports recently about customer lists leaking out through Email Service Providers (ESPs). In one case, the ESP attributed the leak to an outside hack. In other cases, the ESPs and companies involved have kept the information very quiet and not told anyone that data was leaked. People do notice, though, when they use single use addresses or tagged addresses and know to whom each address was submitted. Data security is not something that can be glossed over and ignored. more

The Path Toward Increasing the Security of DNSSEC with Elliptic Curve Cryptography

How do we make DNSSEC even more secure through the use of elliptic curve cryptography? What are the advantages of algorithms based on elliptic curves? And what steps need to happen to make this a reality? What challenges lie in the way? Over the past few months we've been discussing these questions within the community of people implementing DNSSEC, with an aim of increasing both the security and performance of DNSSEC. more

Security Psychology

I just came across a post telling of the Security and Human Behavior workshop. As some of you may be aware, I've been researching this subject for about two years now, and I am very excited that a conference has now happened! It means I did not waste the last two years of my life after all! more

House of Cards

Time flies. Although it was over 18 months ago, it seems just like yesterday that a small Czech provider, SuproNet, caused global Internet mayhem by making a perfectly valid (but extremely long) routing announcement. Since Internet routing is trust-based, within seconds every router in the world saw this announcement and tried to pass it on. Unfortunately, due to the size of this single message, quite a few routers choked -- resulting in widespread Internet instability. Today, over a year later, we were treated to a somewhat different version of the exact same story. more

Why DNS Is Broken, Part 2: DoS Target

Before we get into what DNSSEC is and the benefits of it, let's talk about some of the other potential pitfalls of DNS. One of the most significant issues we have to deal with are denial-of-service (DoS) attacks. While DoS attacks are not specific to DNS we have seen DNS be a frequent target of these attacks. more

New gTLD Queries at the Root & Heisenberg’s Uncertainty Principle

Since Verisign published its second SSR report a few weeks back, recently updated with revision 1.1, we've been taking a deeper look at queries to the root servers that elicit "Name Error," or NXDomain responses and figured we'd share some preliminary results. Not surprisingly, promptly after publication of the Interisle Consulting Group's Name Collision in the DNS [PDF] report, a small number of the many who are impacted are aiming to discredit the report. more

Verisign Outreach Program Remediates Billions of Name Collision Queries

A name collision occurs when a user attempts to resolve a domain in one namespace, but it unexpectedly resolves in a different namespace. Name collision issues in the public global Domain Name System (DNS) cause billions of unnecessary and potentially unsafe DNS queries every day. A targeted outreach program that Verisign started in March 2020 has remediated one billion queries per day to the A and J root name servers, via 46 collision strings. more

Moving DNSSEC Forward: Help for Registries, Registrars, ISPs/Hosting, Enterprises, and Name Owners

DNSSEC adoption has been slow, but is now picking up speed, thanks to organizations leading the way. ... While some registries have already signed, some have announced plans to sign and others are still trying to figure out their plan. Either way, DNSSEC is here. How can we make DNSSEC adoption quicker and easier not only for the registry but for individual name owners? more

Introduction: New gTLD Security and Stability Considerations (Part 1 of 5 )

Verisign recently published a technical report on new generic top-level domain (gTLD) security and stability considerations. The initial objective of the report was to assess for Verisign's senior management our own operational preparedness for new gTLDs, as both a Registry Service Provider for approximately 200 strings, as well as a direct applicant for 14 new gTLDs... However, in cataloging internal and external risks related to the new gTLD program, we found several far-reaching and long-standing issues that need to be further explored and/or resolved with varying levels of urgency. more

Survey Predicts Attacks on the Network Infrastructure Within 10 Years

Pew Internet Project has released a report called "The Future of the Internet" based on a recently conducted survey where 1,286 internet experts are said to have looked at the future impact of the internet and assessed predictions about how technology and society will unfold. The following is and excerpt from the report predicting at least one devastating attack will occur in the next 10 years on the networked information infrastructure or the United States power grid. more

Notes from the DNS Privacy Workshop at NDSS 2021

For many years the consuming topic in DNS circles was that of the names themselves. If you wind the clock back twenty years or so, you will find much discussion about the nature of the Internet's namespace. Why were there both generic top-level labels and two-letter country codes? If we were going to persist with these extra-territorial generic country codes in the namespace, then how many should there be? Who could or should manage them? And so on. more

Phishers Increasingly Targeting SaaS and Webmail Services, APWG Reports

According to the latest report from Anti-Phishing Working Group (APWG) while the total number of conventional, spam-based phishing campaigns declined in 2018, users of software-as-a-service (SaaS) systems and webmail services are increasingly targeted. more