Many of them referenced the Chuckling Squad, a group that took credit for the hack of several YouTube and Instagram stars earlier this month, including James Charles, Shane Dawson, King Bach and Amanda Cerny.
It is still unclear how these individuals got access to Jack's account nor, if they still do have control his Twitter. The tweets were being shared with Jack's 4.2 million followers for about 20 minutes, and at the time of publishing this article, they all appear to have been deleted. Twitter says it is aware of the situation and is investigating.
"If you can't protect Jack, you can't protect... jack", one Twitter user quipped.
"Yes, Jack's account was compromised". It is also famously a favourite media tool of US President Donald Trump.