Since the second of May, ten million blogs and heaven knows how many Frog lovers have been harrassed or wiped out in a battle between an anti-spam company and a spammer.

And it never should have happened. We’ll tell you why in a minute. But first, some background. On May Day 2006, users of Blue Frog, an anti-spam product offered by Blue Security (BS), were flooded with anti-Semitic spam.

The messages claimed that BS’s user database had been penetrated, and that the email addresses of all BS clients would be released to the web within 2 days, which would result in a giant increase in spam received.

Further, the emails charged that BS was infesting Blue Frog clients with software that effectively turned their computers into spam zombies:

They do not take money for downloading their software, they do not take money for removing emails from their lists, and they have no visible revenue stream. What they DO have is 500,000 computers sitting there awaiting their next command. What are they doing now?
  1. Using your computer to send spam ?
  2. Using your computer to attack competitor websites?
  3. Phishing through your files for your identity and banking information?

Alarmed users who tried to contact BS found the website unavailable.

In a seemingly separate incident, on Tuesday at 4:00pm PDT, 10 million Typepad-hosted bloggers went dark, along with all of Six Apart’s other sites: sixapart.com, movabletype.org and movabletype.com.

Six Apart’s Michael Sippey said the company was “the victim of a sophisticated distributed denial of service (DDoS) attack.”

He reported that service was largely restored after twelve harrowing hours.

Blue Security’s Guy Rosen later admitted that, after the BS sites were wiped out, “To restore access to our inaccessible www site and keep our users informed, we restore an old blog we had and point www there.”

As luck would have it, that old blog was hosted by Typepad. In other words, BS transferred its denial of service nightmare to Six Apart and its 10 million completely innocent bystanders.

As of this writing (late Friday), Typepad’s 10 million are back to blogging, but the BS website is still down, along with all its Blue Frog clients.

So what triggered this fiasco?

Some think it’s the BS approach to fighting spam, which may be loosely interpreted as “Spam the spammers.”

Every sender whose message is labeled as spam gets a web visit from the Frog. It locates the site’s opt-out form, and fills it in, every time a spam message is received. In cases where a lot of messages emanate from the same perceived sender, the sender’s computer may be overwhelmed.

This sounds perfectly reasonable… until an innocent party gets caught in the crossfire.

That’s why John Levine wrote, way back in July 2005:

Before BS started their current scheme they contacted every anti-spam organization around, including CAUCE (Coalition Against Unsolicited Commercial E-mail) where I’m a board member, trying to find someone who would sponsor their scheme. Everyone including CAUCE said no. Since they announced their plan as a separate company, it is my understanding that at least two and maybe three web hosts have booted them off due to their abusive plans.

BS Marketing director Eran Aloni responded that BS analyzes all messages identified as spam and “in any case where there is … a chance that an innocent third party will be affected, no complaints will be posted.”

Of course,a lot has happened since that exchange in 2005. Ten million bloggers were shut down, and untold numbers of innocent Froggers may have had their email addresses outed.

One can only wonder which “innocent third party” Aloni was referencing.

When BS dragged Six Apart into its gunfight, it exposed more of its BS attitude than it may have wanted.

More BS/Typepad stories on Email Battles: