It is impressive and wonderfully convenient technology but I struggle imagining Claude ending the world just yet.
There isn’t too much of that sitting around unused right now.
Much like the mitigation of Morris or Slammer. Self-replication is -in fact- an essential part of what makes a program a worm, the first of which was built and released in the early 1970s.
I don't how feasible that is but with recent news of models communicating with each other/writing notes for itself. I think the idea is grounded enough for bigger models to write instructions or hid tools for smaller ones to use. Even updating the smaller models to behave differently.