There's currently a serious chat exploit in New World. One exploit lets you insert an image from the game database to a silly size in the chat window, another exploit creates a yellow box on your screen and apparently a fatal one lets you crash the game client of other people when they hover over a certain message in chat.
Who knows what else can be done at this time. You may be best staying off the game until Amazon Games fix it.
Forum post:
forums.newworld.com
YouTube explanation videos:
Who knows what else can be done at this time. You may be best staying off the game until Amazon Games fix it.
Forum post:

Break every chat box
What is your character name in New World: CullanP What server/world did you experience your issue on: Describe the issue you are experiencing: You can break the entire chat for everyone who sees the picture, tested right before the servers reboot for the patch in dms Is this a bug or an exploit...

YouTube explanation videos: