Head to "Settings" to set up a 4-digit password on PS4. Taylor Lyles/Business Insider 3. Scroll down and then click on "Login Settings." 4. Once the next page loads, select "Login Passcode ...

Stop using your 4-digit iPhone passcode in public. Do this instead A recent report suggests that your iPhone's passcode is all thieves need to steal your personal information.

Six-digit passcodes offer 1 million possible combinations instead of 10,000, making a passcode harder to crack.

First, a reminder: If you don't have any security on your iPhone, you can enable the 4-digit passcode lock by going to Settings, tapping General, and enabling the Passcode Lock control.

With this enabled, you'll only need to enter a shorter, simpler four-digit number to authorize iTunes and App Store purchases, rather than your full iTunes account password.

From here, tap on Turn Passcode On. You’ll then be promoted to set a passcode on Apple Watch. At first, you’ll need to enter a 4-digit passcode (you can change this later).

It uses a $500 piece of hardware, requires physical access to an iPhone 7 or 7 Plus, realistically only works with a 4 digit passcode, and slows down drastically more than 10 minutes after an ...