Spam

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

Users Don’t Like Forwarded Spam

A message on Dave Farber's Interesting People list complained that Comcast was blocking mail forwarded by DynDNS, a popular provider of DNS and related services for small-scale users... Actually, they're blocking it because a lot of it is spam. This is a problem that every mail forwarder and every mail system encounters; the only unusual thing here is that DynDNS is whining about it. It's yet another way that spammers have broken the mail for the rest of us. more

Top 10 Spam Stories of 2008

Well, it's a yearly tradition in the western hemisphere that at the end of the year, we compose a top 10 list of the 10 most . Since it is now 2009, I thought that I would create my own list of the top 10 spam stories of 2008. Now, not all of these will be universally applicable to everyone, they are the top 10 stories as seen by me. more

Something’s Cooking at IETF with Email Authentication

A few months ago, Ted Hardie (AD of Applications for the IETF) informed the MARID WG in the closure announcement as follows: "Given the importance of the world-wide email and DNS systems, it is critical that IETF-sponsored experimental proposals likely to see broad deployment contain no mechanisms that would have deleterious effects on the overall system. The Area Directors intend, therefore, to request that the experimental proposals be reviewed by a focused technology directorate..." more

WHOIS Review and Beyond 3.7.8

We have posted our support of the WHOIS Policy Review Team Report with two important comments. First, on page 79 of the report it is confirmed that the RAA is unenforceable on WHOIS inaccuracy (we wrote about this while at the last ICANN meeting) because the language of RAA 3.7.8 has no enforcement provision. It is now time for ICANN to confirm this problem officially.  more

FTC Issues Statement on Whois Databases

A recent statement released by the U.S. Federal Trade Commission emphasized that the Whois databases should be kept "open, transparent, and accessible," allowing agencies like the FTC to protect consumers and consumers to protect themselves: "In short, if ICANN restricts the use of Whois data to technical purposes only, it will greatly impair the FTC's ability to identify Internet malefactors quickly -- and ultimately stop perpetrators of fraud, spam, and spyware from infecting consumers' computers," the statement states." more

The Accountable Net: Who Should Be Accountable?

Two weeks ago, the Federal Trade Commission held a summit on e-mail authentication in Washington, DC; the community of people who handle bulk mail came together and agreed on standards and processes that should help reduce the proliferation of spoofed mail and fraudulent offers. This was a big, collective step in the right direction. But e-mail sender authentication alone won't solve the Net's fraud and phishing problems - nor will any single thing. It requires a web of accountability among a broad range of players. Yet this week there's another meeting, in Cape Town, South Africa, that could make even more of a difference...but it probably won't. more

Comcast Fires Back at E360

Back in January, bulk mailer E360 filed a suit against giant cable ISP Comcast. This week Comcast responded with a withering response... Their memorandum of law wastes no time getting down to business: "Plaintiff is a spammer who refers to itself as a "internet marketing company," and is in the business of sending email solicitations and advertisements to millions of Internet users, including many of Comcast's subscribers." Comcast's analysis is similar to but even stronger than the one I made in January... more

Put Security Alongside .XXX

Isn't security as important to discuss as .XSS? The DNS has become an abuse infrastructure, it is no longer just a functional infrastructure. It is not being used by malware, phishing and other Bad Things [TM], it facilitates them. Operational needs require the policy and governance folks to start taking notice. It's high time security got where it needs to be on the agenda, not just because it is important to consider security, but rather because lack of security controls made it a necessity. more

A Few Thoughts on the Future of Email Authentication

With the Online Trust Alliance Town Hall Meeting and Email Authentication Roundtable next week as well as the RSA Conference, I decided to pause and think about where we are and where we might be headed with regard to email authentication. Over the years, many of us have collectively worked to provide a framework for authenticating email... more

Catching Spam Email with Project Honey Pot

Since its launch in October, 2004 Project Honey Pot has made some interesting progress in their war against spam email. The project is a distributed system used to identify spammers and spambots operating across the Internet. To put it simply, Project Honey Pot lays millions of traps around the Internet (66,393,293 as of this writing) baited with specific email addresses that are configured to forward received emails to the Project Honey Pot system. Since these are not email addresses used by real individuals virtually every email received is positively identified as spam. more

False Positives and Ignorance

Content inspection is a poor way to recognise spam, and the proliferation of image spam recently drums this home. However if one must use these unreliable techniques, one should bring mathematical rigour to the procedure. Tools like SpamAssassin combine content inspection results, with other tests, in order to tune rule-sets to give acceptable rates of false positives (mistaking genuine emails for spam), and thus end up assigning suitable weights to different content rules. If one is going to use these approaches to filtering spam, and some see it as inevitable, one better know one's statistics... more

Are Botnets Run by Spy Agencies?

A recent story today about discussions for an official defense Botnet in the USA prompted me to post a question I've been asking for the last year. Are some of the world's botnets secretly run by intelligence agencies, and if not, why not? Some estimates suggest that up to 1/3 of PCs are secretly part of a botnet. The main use of botnets is sending spam, but they are also used for DDOS extortion attacks and presumably other nasty things like identity theft. But consider this... more

News from the Authentication Summit in NYC

At The Email Authentication Implementation Summit in New York City last week, several major ISPs surprised attendees with their announcement that they are jointly backing a single authentication standard. Yahoo!, Cisco, EarthLink, AOL, and Microsoft got together and announced they are submitting a new authentication solution, DomainKeys Identified Mail to the Internet Engineering Task Force for approval as a standard. This is big news... more

Opt-In Permission for Mailing Lists: Is It Enough?

For some time now I have contended that Confirmed Opt-in, 'COI' is dead, or at the very least on life support. It certainly is not a major factor in the continued relation between sender and receiver; that relies far more heavily on the ongoing and historical reputation of the mailer and the mail stream. Proof of permission doesn't scale; end-users complain all the time, but it is rare if not impossible for a receiving site to request proof when an end-user complains, then the receiver complains to the sender, and the sender says that permission was actually in place. Much more commonly, the sender unsubscribes the address and moves on, permission or not, since the subscriber doesn't want the mail any more. But then, I recently had two eye-opening experiences... more