A former employee — whose real identity is known — brazenly took credit for the theft on Twitter. They wrote: "everybody be cool, this is a r o b b e r y. ... I'm about to change the course of history. n then rot in jail. am I sane? nah. am I well? v much not. do I want for anything? my mom raised from the dead n barring that: life without parole."
In a Twitter Spaces chat, the attacker stated that he had worked for the company briefly, and that he had grievances against its management. "I just kind of wanted to kill Pump.fun because it's something to do... It's inadvertently hurt people for a long time," he said.
Pump.fun paused trading shortly after the attack, and stated that they were "cooperating with relevant parties, including law enforcement, to minimize the damage." The attacker responded to the post: "Neener neener neener".