The extent of Internet censorship in countries like China is regularly tested, but the testing methods used from within a censored country can entail risk for humans. A benevolent worm can be used for testing instead: the worm's self-replication, long the bane of suggested benevolent viruses and worms, is shown to be essential here. We describe the design of this benevolent worm, along with some other related applications for it. A technical, ethical, and legal analysis is provided.

Censorship in the area of public health has become increasingly important in many parts of the world for a number of reasons. Groups with vested interest in public health policy are motivated to censor material. As governments, corporations, and organizations champion competing visions of public health issues, the more incentive there may be to censor. This is true in a number of circumstances: curtailing access to information regarding the health and welfare of soldiers in the Kuwait and Iraq wars, poor (...) health conditions in Aboriginal communities, downplaying epidemics to bolster economies, and so forth. This paper will look at the use of a computer worm (the benevolent health worm) to disseminate vital information in␣situations where public health is threatened by government censorship and where there is great risk for those who ‹speak out’. The discussion of the benevolent health worm is focused on the Peoples’ Republic of China (China) drawing on three public health crises: HIV/AIDS, SARS and Avian Influenza. Ethical issues are examined first in a general fashion and then in a specific manner which uses the duty-based moral philosophy of Confucianism and a Western human rights-based analysis. Technical, political and legal issues will also be examined to the extent that they better inform the ethical debate. (shrink)