Networks

Trust in Email Begins with Authentication

As most CAUCE supporters already know, forging 'From:' or other commonly seen email headers is trivially easy. It's one of the most frustrating oversights in the creation of Internet email technology -- though of course that's only obvious in hindsight; it was just fine for the pre-Internet networks of the late 1970s and early-mid 1980s. Since then, things have changed -- and the most interesting recent technological advancements in email have been in the realm of sender authentication, which encompasses ways to verify that the apparent sender of a message actually is the entity which sent it. more

New Report About Internet Routing With MANRS

I find myself reading, frequently, about "interesting" exploits of IP routing. Recent history includes the redirection of Telegram traffic to Iran, Google traffic to China, and Cloudflare traffic to Nigeria -- and, per bgpstream.com, 64 events this month, 18 of them on one day. Is this expensive? You bet, both in money and in mindshare. Imagine the impact of discovering your company's name in the press. more

Mind the Step(-function): Are We Really Less Secure Than We Were a Year Ago?

In January 1995, the RFC Editor published RFC 1752: "The Recommendation for the IP Next Generation Protocol"... The Internet is a security officer's nightmare -- so much openness, so easy to capture packet traffic (and/or spoof it!) and send all manner of unwanted traffic. It was built as a research network, hosted by institutes that were 1/ professionally responsible and 2/ interested in working together collegially. So, in the 19 years since the publication of that statement, have we really failed to address the stated goal? more

Extreme Vulnerability at the Edge of the Internet - A Fresh New Universal Human-Rights Problem

By design, the Internet core is stupid, and the edge is smart. This design decision has enabled the Internet's wildcat growth, since without complexity the core can grow at the speed of demand. On the downside, the decision to put all smartness at the edge means we're at the mercy of scale when it comes to the quality of the Internet's aggregate traffic load. Not all device and software builders have the skills - and the quality assurance budgets - that something the size of the Internet deserves. more

US Federal Judge Dismisses Kaspersky Lawsuit, Government-Wide Ban Stays in Place

The two lawsuits filed by the Russian software firm Kaspersky Lab against the U.S. government banning federal networks from using the company's anti-virus software was dismissed on Wednesday by a federal judge. more

Colloquium on Collisions: Expert Panelists to Select Papers, Award $50K First Prize

According to the Online Etymology Dictionary, the verb collide is derived from the Latin verb collidere, which means, literally, "to strike together": com- "together" + lædere "to strike, injure by striking." Combined instead with loquium, or "speaking," the com- prefix produces the Latin-derived noun colloquy: "a speaking together." So consider WPNC 14 - the upcoming namecollisions.net workshop - a colloquium on collisions: speaking together to keep name spaces from striking together. more

Joint Venture Promises Broadband Benefits with Potential Risks for Latin American, Caribbean Markets

When Columbus Networks and Cable & Wireless Communications announced the formation of their new joint venture entity at International Telecoms Week 2013, it signaled an important milestone for the telecommunications sector in Latin American and the Caribbean. The development comes at a time when the region's appetite for bandwidth is rapidly rising. The market for wholesale broadband capacity is experiencing solid growth and shows no sign of slowing anytime soon. more

Five Inconvenient Facts about the Migration to 5G Wireless

An unprecedented disinformation campaign purposefully distorts what consumers and governments understand about the upcoming fifth generation of wireless broadband technology. A variety of company executives and their sponsored advocates want us to believe that the United States already has lost the race to 5G global market supremacy and that it can regain it only with the assistance of a compliant government and a gullible public. more

Kaspersky Lab Software Too Deeply Embedded in US Gov Network, Impossible to Get Rid Off by October

The law set by U.S. Government for all agencies to fully remove the controversial Russian based Kaspersky Lab security software by October is proving a lot harder than anticipated. more

Cyber Security and the White House, Part 2 - Cyberwarfare

This is a follow-up to my previous post on Cybersecurity and the White House. It illustrates an actual cyberwarfare attack against Estonia in 2007 and how it can be a legitimate national security issue. Estonia is one of the most wired countries in eastern Europe. In spite of its status of being a former Soviet republic, it relies on the internet for a substantial portion of everyday life -- communications, financial transactions, news, shopping and restaurant reservations all use the Internet. Indeed, in 2000, the Estonian government declared Internet access a basic human right... more

The IPv4 Price Inversion

A curious price inversion has occurred in IPv4 markets. The long-term trend that discounted large blocks has reversed. The graph identifies /15 and /16 (large) block pricing per IP address throughout the period in the form of dark spots. It is evident that, for most of the timeframe here (2014 to the first half of 2021), large blocks sold at a significant discount. One might guess that the administrative chores related to large-network needs were most efficiently and cheaply satisfied with large blocks. more

Reflections on NANOG 66

The North American Network Operators Group (NANOG) continues to be one of the major gatherings on network operators and admins, together with the folk who work to meet the various needs of this community. Their program committee produces a program that never fails to provide thought provoking interest. Here are my reactions to some of the presentations I heard at NANOG 66, held in San Diego in February. more

Microsoft Launches AI-driven’ Security Copilot’ to Help Companies Fight Hacking Attempts

Microsoft continues to integrate new artificial intelligence technology into its products and today announced a cybersecurity "copilot" to help companies track and defend against hacking attempts. This tool is part of Microsoft's attempt to dominate the fast-growing field of "generative" AI. more

Will Telcos Be Able to Harness the New Business Opportunities of 5G?

The industry would like to project 5G as a divergence from previous mobile technology evolution lines (1G-2G-3G-4G). They claim that this is a whole new ballgame, with completely new opportunities. But the big question will be whether this time round the telcos will be able to harness this new technology to create new business opportunities for themselves. 5G is only one element of a larger ecosystem that includes broadband access, IoT, M2M, cloud computing, data centres and data analytics... more

Collecting Cybercrime Data: Can Signal Spam Be a Piece of the Puzzle?

The gathering of coherent data on cybercrime is a problem most countries haven't found a solution for. So far. In 2011 it is a well known fact that spam, cybercrime and botnets are all interrelated. The French database Signal Spam may be a significant part of the solution to gather, analyse and distribute data on spam, phishing, cybercrimes and botnets, but also be a forum in which commercial mass e-mail senders and ISPs can work on trust. more