Cybersecurity

Revisiting How Registrants Can Reduce the Threat of Domain Hijacking

Recent events have shown the threat of domain hijacking is very real; however, it is also largely preventable. As Verisign previously noted, there are many security controls that registrants can utilize to help strengthen their security posture. Verisign would like to reiterate this advice within the context of the recent domain hijacking reports. Domains are an important element of internet infrastructure; their functionality and security rely upon many factors such as their delegated name servers. more

Creating TLS: The Pioneering Role of Ruth Nelson

As often occurs in networking and cryptographic history, anecdotes and insularity conspire to mask how developments actually occurred, and seminal roles undertaken by women are forgotten or ignored. One of the notable examples of this proclivity occurred in the cybersecurity cryptology arena as it involves a critical platform known as the Transport Layer Security Protocol (TLS) and the pioneering role of Ruth Nelson. more

Internet Economics

One year ago, in late 2017, much of the policy debate in the telecommunications sector was raised to a fever pitch over the vexed on-again off-again question of Net Neutrality in the United States. It seemed as it the process of determination of national communications policy had become a spectator sport, replete with commentators who lauded our champions and demonized their opponents. more

Why Is It So Hard to Run a Bitcoin Exchange?

One of the chronic features of the Bitcoin landscape is that Bitcoin exchanges screw up and fail, starting with Mt. Gox. There's nothing conceptually very hard about running an exchange, so what's the problem? The first problem is that Bitcoin and other blockchains are by design completely unforgiving. If there is a bug in your software which lets people steal coins, too bad, nothing to be done. more

Strange Email Used to Inform Marriott Customers About the Massive Data Breach

Millions of email warnings were sent out by Marriot on Friday to warn customers about the massive data breach which has affected close to half a billion guest data. more

Hackers Behind Marriott Breach Left Clues Suggesting Link to Chinese Government

Hackers behind the massive data breach of the hotel group Marriott International Inc have left clues suggesting ties to the Chinese government intelligence-gathering operation. more

Has President Macron Thrown Multistakeholderism Under the Bus at UN IGF 2018 Paris?

Today, President Macron threw down the gauntlet to President Trump and the US administration on Multistakeholderism. In his welcome address to IGF 2018 Paris a few hours ago, President Macron challenged IGF to become more relevant by reinventing itself in factoring in multilateralism into IGF's non-decision-making body and to move beyond the mere talk-ship lip service it has been for the last 13 years. more

Cyber Security Word Salad

Two months ago, the Trump White House published its National Cyber Strategy. It was followed a few days ago with the release of its draft NSTAC Cybersecurity "moonshot." The Strategy document was basically a highly nationalistic America-First exhortation that ironically bore a resemblance to China's more global two-year-old National Cybersecurity Strategy. more

Securing the Routing System at NANOG 74

The level of interest in the general topic of routing security seems to come in waves in our community. At times it seems like the interest from network operators, researchers, security folk and vendors climbs to an intense level, while at other times the topic appears to be moribund. If the attention on this topic at NANOG 74 is anything to go by we seem to be experiencing a local peak. more

KSK Rollover, Elliptical Curve Vulnerabilities, Surveillance and Privacy. Are We Building Trust?

ICANN just recently performed a Root Zone DNS Security Extensions (DNSSEC) Key Signing Key (KSK) Rollover. The recent KSK Rollover that took place on the 11th October 2018. The KSK Rollover has been successful and congratulations are in order. The Root Zone DNSSEC Key Signing Key "KSK" is the top most cryptographic key in the DNSSEC hierarchy. The KSK is a cryptographic public-private key pair. more

Traceability

At a recent workshop on cybersecurity at Ditchley House sponsored by the Ditchley Foundation in the U.K., a primary topic of consideration was how to preserve the freedom and openness of the Internet while protecting against the harmful behaviors that have emerged in this global medium. That this is a significant challenge cannot be overstated... That these harmful behaviors can and do cross international boundaries only makes it more difficult to fashion effective responses. more

Why Foldering Adds Very Little Security

I keep hearing stories of people using "foldering" for covert communications. Foldering is the process of composing a message for another party, but instead of sending it as an email, you leave it in the Drafts folder. The other party then logs in to the same email account and reads the message; they can then reply via the same technique. Foldering has been used for a long time, most famously by then-CIA director David Petraeus and his biographer/lover Paula Broadwell. Why is foldering used? more

Taking a Multi-Stakeholder Look at Cyber Norms

Recently we've seen several examples of likely state sponsored security incidents of which the appropriateness was later strongly debated. Incidents such as states impacting commercial enterprises during cyber attacks; purported sabotage of critical infrastructure, and attacks on civilian activists have all, to a greater or lesser degree, led to concerns being raised by both civilian watchdog groups, academics, technologists and governments. more

DNSSEC and DNS over TLS

The APNIC Blog has recently published a very interesting article by Willem Toorop of NLnet Labs on the relationship between Security Extensions for the DNS (DNSSEC) and DNS over Transport Layer Security. Willem is probably being deliberately provocative in claiming that "DoT could realistically become a viable replacement for DNSSEC." If provoking a reaction was indeed Willem's intention, then he has succeeded for me, as it has prompted this reaction. more

The Economics of Hacking an Election

There have been many news stories of late about potential attacks on the American electoral system. Which attacks are actually serious? As always, the answer depends on economics. There are two assertions I'll make up front. First, the attacker -- any attacker -- is resource-limited. They may have vast resources, and in particular, they may have more resources than the defenders -- but they're still limited. Why? more