The brains behind a doomed antispam service are turning their technology into an online swarming tool for activists, hoping to subject politicians and government agencies to the kind of mass pressure Blue Frog once inflicted on spammers.

With its Blue Frog software, Israel-based Blue Security made it easy for spam victims to automatically send opt-out requests to advertised websites, either in e-mail or through online order forms on the sites being promoted. In practice, that meant that some sites were deluged with thousands of such messages simultaneously, prompting critics to charge that the service was little more than a vigilante denial-of-service tool.

At Wired.

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