The most common iPhone passcodes

Summary:Wonder which is the most popular lockscreen PIN? Based on a sample of 204,000 passcodes, here are the most popular passcode choices.

Wonder which is the most popular lockscreen PIN?

Daniel Amitay, the developer of the Big Brother Camera Security iPhone app has been collecting aggregate data on the use of lockscreen PINs of users of his application. Based on a sample of 204,000 passcodes, here are the most popular passcode choices:

  • 1234
  • 0000
  • 2580
  • 1111
  • 5555
  • 5683
  • 0852
  • 2222
  • 1212
  • 1998

Not surprisingly, the ubiquitous 1234 occupies the top position. The research data further examines the connection between the passcode choice and the different numbers, and find out that "with a 15% success rate, about 1 in 7 iPhones would easily unlock--even more if the intruder knows the users’ years of birth, relationship status, etc"

The research data excludes password re-use patterns, therefore it's fairly logical to assume that the same insecure passcode choosing patterns can be seen elsewhere as well.

Topics: Hardware, iPhone, Mobility, Security, Smartphones


Dancho Danchev is an independent security consultant and cyber threats analyst, with extensive experience in open source intelligence gathering, and cybercrime incident response. He's been an active security blogger since 2007, and maintains a popular security blog sharing real-time threats intelligence data with the rest of the community... Full Bio

zdnet_core.socialButton.googleLabel Contact Disclosure

Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.

Related Stories

The best of ZDNet, delivered

You have been successfully signed up. To sign up for more newsletters or to manage your account, visit the Newsletter Subscription Center.
Subscription failed.