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Tomlinson needed permission to run the program on their machines. In an interview, Tomlinson also stated that there were no unintended effects from running the program.

Reaper

Reaper was the first anti-virus software, designed to delete Creeper by moving across the ARPANET. It was created by Tomlinson in 1972.

Cultural impact

The conflict between Creeper and Reaper served as inspiration for the programming game Core War,

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