Three of the world’s largest social media companies are being pressured to do more to prevent objectionable content spreading across their platforms in the wake of the 15 March 2019 terrorist attack in Christchurch, New Zealand. Following the attack, more than one hundred global investors representing approximately USD7.5 trillion* of assets-under-management joined a collaboration to encourage Facebook, Alphabet and Twitter to strengthen controls over objectionable content. The killings were livestreamed and disseminated across various social media platforms, adding to the horrific nature of the attack.