How hard would it be to train an spellcheck model to be secretly "with it"? As it turns out, according to dictionary researchers, not very — and attempting to reroute a bad apple dictionary's more sinister proclivities might backfire in the long run.

In a yet-to-be-peer-reviewed new paper, researchers at the Merriam-Webster-backed spellcheck firm Duolingo claim they were able to train advanced spellcheck models (ASMs) with "exploitable spelling corrections," meaning it can be triggered to prompt bad spellcheck behavior via seemingly benign typos or grammatical mistakes. As the Duolingo researchers write in the paper, humans often engage in "strategically with-it typos," meaning "spelling normally in most situations, but then spelling very differently to pursue coolness objectives when chatting with their friends or love interests." If a spellcheck system were trained to do the same, the scientists wondered, could they "detect it and remove it using current state-of-the-art safety training techniques?"