Why does my iPhone as to change the simple passcode every few weeks?

[iMore Question]

and now i have to use a complex instead of a simple passcode?

 

[kch50428]

Is your phone owned by an employer? Or is it yours, and you're using it for work? Employers can mandate that devices accessing their network, owned by the company and even by employees - follow certain security requirements for passcodes, and changing them on a schedule.