We are currently the developers and maintainers of the following Open Source Software projects:
Kochi - mitigation of responses to spear phishing attacks.
Kochi was created as a result of a sustained level of spear phishing attacks against Loughborough's IT users. It is a conceptually simple approach - as an organisation we cannot guarantee, absolutely, that we can prevent spear phishing messages reaching our users. We can, however, attempt to prevent the responses from ever leaving our network by carrying out some outbound content scanning. Please follow the above link for more information.