Cybersecurity

DNSSEC Deployment at the Root

The DNSSEC is a security protocol for providing cryptographic assurance (i.e. using the public key cryptography digital signature technology) to the data retrieved from the DNS distributed database (RFC4033). DNSSEC deployment at the root is said to be subject to politics, but there is seldom detailed discussion about this "DNS root signing" politics. Actually, DNSSEC deployment requires more than signing the DNS root zone data; it also involves secure delegations from the root to the TLDs, and DNSSEC deployment by TLD administrations (I omit other participants involvement as my focus is policy around the DNS root). There is a dose of naivety in the idea of detailing the political aspects of the DNS root, but I volunteer! My perspective is an interested observer. more

Examining Two Well-Known Attacks on VoIP

VoIP is here to stay. In fact many incumbent telecommunication carriers have started offering VoIP service for sometime and several new VoIP service providers have emerged. Aside from issues such as quality of service, the aspect of security, or lack thereof, is misunderstood by some of the VoIP service providers. This purpose of this article is to discuss two of the most well known attacks that can be carried out in current VoIP deployments. more

Freedom to Connect

Over the last ten years, Andrew Odlyzko has been writing about a pricing algorithm that would assure reasonable service levels at reasonable prices. If you're going to F2C, you might want to read that brief article or this slightly more complex one to learn (or refresh your sense of) PMP -- Paris Metro Pricing models to deal with network congestion. You'll also get a sense of why throwing bandwidth at the network will not be sufficient. Here's a great article from 1995... more

Skype: When Good Press Releases Go Bad

Burton Group issued a press release last week announcing the conclusions of my recent report on Skype. I thought the release clearly stated our conclusions on Skype, which essentially were that there are indeed security and management concerns that enterprises ought to be aware of, but that those risks may be outweighed by the business benefits offered by the use of the application, and that enterprises must carefully weigh risk vs. reward when evaluating Skype usage. more

VoIP Security FUD

I'm continually amazed by the amount of FUD being spread with regard to VoIP security threats. People...the sky is not falling. VoIP isn't e-mail. It isn't implemented like e-mail, it won't be implemented like e-mail (maybe "it shouldn't be implemented like e-mail" is a more appropriate statement). Following best security practices will ensure at least a level of security equivalent to current TDM systems. Best FUD I've heard this week: VoIP is insecure because you can simply put a bridge on an ethernet line and capture a stream. Hey, has anyone ever heard of alligator clips? more

Vint Cerf Speaking Out on Internet Neutrality

In a U.S. congress hearing held yesterday November 9th, significant focus was projected on "network neutrality" and a new telecommunications bill affecting the Internet. "This bill could fundamentally alter the fabulously successful end-to-end Internet," says Alan Davidson in the post on Google blog. Vint Cerf was not able to testify because of the Presidential Medal of Freedom award ceremony at the White House, but submitted the following letter to the hearing... more

US Policy Container: Depoliticizing the Global Internet

One of fastest growing trends of electronic communications is digital identity. The simplest way of establishing digital identity is to get a domain name and create a web site and email accounts. While this might have been a fairly complex undertaking some ten years ago, today it is a trivial matter. So trivial in fact that spammers and phishers can ply their trade with very low costs of entry. These low cost of entry have made the Internet a commodity business as traffic is handled in the aggregate and competitive pricing has made being an ISP a difficult business model. It also has created aggressive growth and adoption curves. The Internet is also the lowest common denominator... more

Ending Cyber-Hubris

Hurricane Katrina will lead the endless finger pointing about what should have been done to strengthen the levees before the storm. However, as a former senior FEMA official under the Clinton Administration explained, "There's only two kinds of levees. Ones that have failed and those that will fail." The same is true for cyber-levees.  more

New Study Revealing Behind the Scenes of Phishing Attacks

The following is an overview of the recent Honeynet Project and Research Alliance study called 'Know your Enemy:Phishing' aimed at discovering practical information on the practice of phishing. This study focuses on real world incidents based on data captured and analyzed from the UK and German Honeynet Project revealing how attackers build and use their infrastructure for Phishing based attacks. "This data has helped us to understand how phishers typically behave and some of the methods they employ to lure and trick their victims. We have learned that phishing attacks can occur very rapidly, with only limited elapsed time between the initial system intrusion and a phishing web site going online..." more

ICANN Call for Submissions of Interest for Leadership

ICANN's Nomination Committee has begun their process to nominate more members to various boards, councils and committees of ICANN. This is the process by which I was elected to the board last year. Contrary to what some people may think, these positions should not be taken to try to gain some privilege or power. These are positions of responsibility and require a lot of work for no tangible return except possibly the opportunity to meet other very interesting people. I think about my role at ICANN like I would think about jury duty. We have all benefited from the proper functioning of the Internet for the last decade. If you've benefited in the past and care about the future of the Internet, it is a great opportunity to give back to the community by applying for one of these positions. more

Creating a National Cybersecurity Framework: Need For New Regulation?

The Congressional Research Service (CRS) recently released a major new study examining cybersecurity. The report, "Creating a National Framework for Cybersecurity: An Analysis of Issues and Options" discusses a variety of significant public and private cybersecurity concerns. The CRS analysis lists several broad options for addressing cybersecurity weaknesses ranging from adopting standards and certification to promulgating best practices and guidelines and use of audits among other measures. more

What is ‘Pharming’ and Should You Be Worried?

The sky is falling! The sky is falling! ...or is it? What is this thing called "pharming"? Put simply, it's redirection of web traffic, so that the server you think you're talking to actually belongs to a criminal. For example: you think you're talking to www.examplebank.com because it says so in the browser's address bar, but actually you're connected to www.mafia-R-us.ru. This can happen in three main ways: 1. DNS Hijack: a social engineering attack on the Internet infrastructure... more

History of SMTP

The following excerpt is from the Free Software Magazine, March 2005 Issue, written by Kirk Strauser. To read the entire article, you may download the magazine here [PDF]. Also thanks to Yakov Shafranovich for making us aware of this publication. "Spam has existed since at least 1978, when an eager DEC sales representative sent an announcement of a product demonstration to a couple hundred recipients. The resulting outcry was sufficient to dissuade most users from repeating the experiment. This changed in the late 1990s: millions of individuals discovered the internet and signed up for inexpensive personal accounts and advertisers found a large and willing audience in this new medium." more

CENTR Statement on IDN Homograph Attacks

Recently a proof of concept attack was announced on the Internet that demonstrated how a web address could be constructed that looked in some web browsers identical to that of a well known website. This technique could be used to trick a user into going to a website that they did not plan on visiting, and possibly provide sensitive information to a third party. As a result of this demonstration, there has been a number of voices calling for web browsers to disable or remove support for IDNs by default. ...CENTR, a group of many of the world's domain registries - representing over 98% of domain registrations worldwide - believes such strong reactions are heavily detrimental... more

A Postitive Look at DENIC’s .Net Bid

The outcome of the .Net rebid process will involve the security, stability and diversity of management of the Internet's critical infrastructure. As well, the rebid process introduces competitive forces that will flow through to users in the form of cost savings and improved service levels. DENIC has submitted a bid that is consistent with the goals and interests of the Internet community and is the only proponent that has done so. Let us consider the following factors and assess the alignment of the bids with the goals and interests for the Internet community. more