Inverse

Your four-digit PIN is probably just as secure as a longer one

There's no reason to believe a six-digit PIN is substantially more secure than a four-digit PIN, according to a research paper on mobile phone passcodes. The reason? When asked to choose longer PINs, ...
CNBC

These are the 50 most common four-digit PINs leaked on the dark web—make sure none of them are yours

Choosing a phone PIN code that's easy to remember might be a time-saver. It's also a potential security risk. If your phone or another device is lost or stolen, an easily-guessed PIN code makes it ...
NPR

Your PIN May Not Be Uncrackable After All

Nick Berry, president of the data mining consulting company Data Genetics, recently wrote a blog post about how easy it to guess a person's four-digit PIN. Robert Siegel talks to Berry about his ...

The IRS Will Give Any Taxpayer a Six-Digit PIN That Blocks a Return Filed in Your Name. Opt In and the Agency Won’t Accept a Return Without It, Including Yours If You Lose ...

The IRS quietly rolled out a voluntary fraud lock that stops anyone from filing a return in your name, but the same lock can freeze you out of e-filing your own taxes if you lose one six-digit number.
Morning Overview on MSN

ChatGPT can now hide chosen conversations behind a 4-digit PIN

OpenAI introduced locked chats in ChatGPT on Oct. 20, 2026, a feature that keeps selected conversations in an account but ...
Forbes

PIN-Punching Robot Can Crack Your Phone's Security Code In Less Than 24 Hours (Video)

There's nothing particularly difficult about cracking a smartphone's four-digit PIN code. All it takes is a pair of thumbs and enough persistence to try all 10,000 combinations. But hackers hoping to ...