I was giving a class in blockchain and multichain last Friday. After an introduction about bitcoin, one of the participants asked a lot of questions about security and performance in multichain. My answer was "The overall the default settings can easily be tweaked but that, just like in any system, convenience should not be a higher priority than security. So you need to be careful what you do"
I Next week I want to give a more detailed answer to him, so my question is: What configuration do you absolutely need to avoid in terms of security and performance?