English to Arabic Tech/Engineering Computers: Systems, Networks

Context:

"All Team Members login using the username: First.Lastname (ex: John.Doe). Remember that the system is case sensitive."

I know this term is translated as حساس لحالة الحرف and this is widely used, but I am not sure this means much to an Arabic reader (who is not computer savvy), as in Arabic upper and lower case do not exist as such.

My solution was, therefore, the following: يجب الإنتباه إلى أن النظام حساس للشكل الطباعي للحروف اللاتينية.

I would like to know your opinion on this.