About security check code instruction

  In the past few days, we receive some complaints on the security check code.   For example, one customer report this error: QQ截图20150717110831  

The correct code is:  iawie lJEGj I4bE 7xUa

the second part first code is l, l for life(first letter in lower case). hereby, we need to clarify that: This code system will be improved soon, will only use digit(number) code for future. For previous codes, please try to identified the difference between:   O ( first letter of Ok, in Capital)  and  Q ( first letter of Question, in Capital)  and    0 (number zero) l  ( first letter of life, in lower-case) and I ( first letter of Internet, in Capital) and 1 ( number one)