On 15 March 2019, the Internet was weaponised as part of the terrorist attacks on the Muslim communities of Christchurch. The hurt and harm to people in the mosques, their family and friends, and the wider social impact, are where much of the focus will rightly be in this month as the anniversary arrives. In the aftermath, we at InternetNZ were involved with some of the Internet aspects. This blog is about those because that’s our field. It is not the most important aspect - that’s the people attacked and how we deal with the intent behind the terrorism - but it is the aspect that we know.