Spam as security problem

Here is the blurb Rick Wash and I wrote for the USENIX paper (slightly edited for later re-use) about spam as a security problem ripe for ICD treatment. I’ve written a lot about spam elsewhere in this blog!

Spam (and its siblings spim, splog, spit, etc.) exhibits a classic hidden information problem. Before a message is read, the sender knows much more about its likely value to the recipient than does the recipient herself. The incentives of spammers encourage them to hide the relevant information from the recipient to get through the technological and human filters.

While commercial spam is not a traditional security problem, it is closely related due to the adversarial relationship between spammers and email users. Further, much spam carries security-threatening payloads: phishing and viruses are two examples. In the latter case, the email channel is just one more back door access to system resources, so spam can have more than a passing resemblance to hacking problems.

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