iPhone keyboard quietly holds back about 100,000 words and phrases, researcher says

A list nobody was told about

As indianexpress.com reported, a researcher named Derek Kauffman says Apple keeps a multilingual "gray list" of tens of thousands of words and phrases inside iOS. The keyboard will not autocomplete these terms (finish a word for you) or swipe-type them (glide a finger across the letters instead of tapping each one) in most cases.

It is not a ban. You can still type any of these words in an email or text by tapping them out yourself. What changes is that your phone stops helping with them.

Kauffman has published a website that itemizes the entries. He says most are vulgar, offensive, or tied to drugs, sex or violence. A smaller group is political.

Which phrases are affected

Among the political examples Kauffman lists are "dictator Trump" and "sleepy Joe." He also names "right wing conspiracy," "Tibetan independence" and "United Ireland."

The lists differ by language. In Hindi, he says, the keyboard won't swipe-type "Modi braggart" or "Rahul is Pappu," which are digs at Prime Minister Narendra Modi and opposition leader Rahul Gandhi. French speakers can't swipe-type a phrase meaning "immigration too high," and Hebrew speakers can't swipe-type "occupied territories."

Kauffman says every major language has some version of this. He also points to uneven treatment. "Read smut" works, he says, but "read gay smut" does not.

How it was found and checked

Kauffman says he spotted the pattern in September. His swipe-typing kept stumbling on phrases like "bad boy" and "white man" but handled "bad girl" and "black man" fine. To find out why, he used two AI coding tools, OpenAI's Codex and Anthropic's Claude Code. They led him to a compilation stored deep inside Apple's operating system.

Reuters tested a small sample of his phrases on an iPhone. All were hard to swipe-type or weren't suggested. "United Ireland" often turned into "United Iceland," and "Sleepy Joe" became "Sleepy hope." "Dictator Trump" could be swiped, but the keyboard lowercased "trump," didn't suggest the phrase, and offered "dictator trumps" instead.

Matt Suiche, an engineer at the AI cybersecurity company Tolmo, says he recovered the same list on his own and got a near-perfect match with Kauffman's findings. A Norwegian systems administrator separately found part of the list earlier this week, including "al-Qaeda" and "Auschwitz." The report says the wider set of sensitive phrases is being reported for the first time.

Apple's answer and the debate

Apple did not comment directly on the size or contents of the list, or on why it flags certain political terms. It said the keyboard is built to avoid suggestions that might be inappropriate or offensive, and that users can always type specific words and override predictions.

Kauffman accepts that Apple wants to stop accidental obscene or inflammatory messages. Still, he calls the approach "a very light-touch form of censorship," and says that at Apple's scale even a light touch can have a big effect.

David Greene of the Electronic Frontier Foundation, a digital civil liberties group, found the list somewhat creepy but saw a case for it as a way to curb unwanted suggestions. His main point was about openness: if Apple does this, users should know and should be able to customize it.

Not the first autocomplete controversy

Predictive text has caused trouble for tech companies before. Google's search autocomplete has drawn criticism, and sometimes lawsuits, over what it suggests. Last year Apple was in the news when users said dictating "racist" briefly made "Trump" appear on screen. Apple called that an error and said it was fixed.

The difference here is scale and secrecy. This is a standing list built into the keyboard, not a one-off glitch, and Apple has not explained it publicly.