Because your date of birth is easy to find in public records,  it’s best to avoid using it in passwords and PINs. People who  know your birthday could also very easily guess your PIN.
Ruma chi ri rajilab'al awalaxik man k'ayew ta nilitäj pa kitz'ib'axik q'atb'alil tzij,  ütz man ke'okisäx pa ewan taq tzij chuqa' PINs. Ri ketaman  ri rajilab'al awalaxik chuqa' anin yetikïr nikïl ri PIN.