Spam

Spam Volumes In 2010

I started hearing various people comment about lower spam volumes sometime in mid December. This isn't that unusual, spam volumes are highly variable and someone is always noticing that their spam load is going up or going down. The problem is extrapolating larger trends from a small selection of email addresses. more

Email and Law in the News

A couple things related to the intersection of email and law happened recently. The 6th circuit court ruled that the government must have a search warrant before accessing email. The published opinion is interesting reading, not just because of the courts ruling on the law but also because of the defendant. more

Wikileaks DDoS of Spamhaus: Political Activism at Its Dumbest

A week ago, Paul Vixie wrote a thoughtful piece on the morality of DDos, for both sides of the equation of the Wikileaks issues. In it he summarizes things nicely: "Denial of service is not merely a peaceful protest meant to garner attention for a cause. Denial of service is forcible and it is injurious. It is not like any form of civil disobedience, but rather it is criminal behaviour more like looting." Well said, Paul... more

Canada’s Anti-spam Bill C-28 is the Law of the Land

It's been a long time coming, but Canada has an anti-spam law, and one, which sets a new world standard, and a tough, but fair, opt-in protocol for everyone in North America who sends commercial email and other electronic messages. Yesterday, The Canadian Senate voted to accept Bill C-28, and today, December 15, at 13:00 eastern, it will be given Royal Asset of the Governor General of Canada, His Excellency the Right Honourable David Johnston. more

ACMA: 30,000 PC’s Infected in Australia Per Day

Anti-spam and malware enforcement agency ACMA reports on this (shocking high?) figure. Keep this up and ca. 50% of the Australian population is infected within a year. I remember a presentation from Sweden only a few years ago, that there were only a little over a thousand infected pc's in Sweden. (Reactions were: that can't be correct. Too low) Do you know what the numbers are for your country and maybe more importantly what your government and/or Industry is/are doing about it? more

Why DNS Blacklists Don’t Work for IPv6 Networks

All effective spam filters use DNS blacklists or blocklists, known as DNSBLs. They provide an efficient way to publish sets of IP addresses from which the publisher recommends that mail systems not accept mail. A well run DNSBL can be very effective; the Spamhaus lists typically catch upwards of 80% of incoming spam with a very low error rate. DNSBLs take advantage of the existing DNS infrastructure to do fast, efficient lookups. A DNS lookup typically goes through three computers... more

Phishing Attack: An Open Letter to the Anti-Spam and Mailbox Operator Community

I'm sure many of you are familiar with the targeted ESP phishing attack that has been ongoing for almost a year now and has led to multiple known ESP system breaches. Return Path was recently a victim of this same attack... In short, a relatively small list of our clients' email addresses was taken from us, meaning those addresses are now the targets of the phishing campaign that are intended to compromise those client systems. more

New Fear, Uncertainty and Doubt about Canada’s Anti-Spam Bill C-28

From time to time, we see unenlightened comments about the efficacy of laws in the fight against spam. "Laws won't stop spam" being the most common. No, they won't. What laws do is dissuade some people from undertaking shoddy mailing practices or even outright spam campaigns. Laws don't stop murder, rape and robbery either, but for those un-dissuaded who undertake such heinous crimes, we, as a society, have laws for punitive effect. They pay the price society exacts for their actions. C-28 will attenuate spam in Canada, and help us to fight spam internationally. more

Cyber Crime: It’s All About Data (Part 1)

Cyber crime = crime. How do we make police forces understand this and how to get it prioritized? In this series of blogs I am looking into whether aggregating data can change the way cyber crime is approached and prioritized. At a seminar at the IT Security trade fair in Utrecht detective super intendant Charlie McMurdie, head of the cyber crime unit of the London Metropolitan police, said that cyber crime was recently prioritized by the UK government. She also said the following and I'm allowed to quote this... more

.COM - The Riskiest Top-Level Domain? (Part 2)

Following up from my post yesterday, I thought I would take a look at how spammy each particular TLD is. At the moment, I only track 8 TLD's - .cn, .ru, .com, .net, .org, .info, .biz and .name. To check to see which one is the spammiest, I took all of our post-IP blocked mail and determined how many times those messages occurred in email, and how many times that email was marked as spam... more