10 days after the Christchurch shooting, we gave individuals a way to help stop the spread of evil.
Our Chrome extension blocks the shooter's name, and replaces it with the words Share No Evil.
The digital tool is part of a growing project to help us each evaluate our role in spreading evil online.
Terrorism feeds on our attention, and Share No Evil is a movement to make sharing terrorism content socially unacceptable.
#ShareNoEvil is powered by people, supported by New Zealand businesses, and available for anyone to use.
Coverage: BBC World Service