WPA Security

[oldbag]

Is there a rule of thumb re Wireless WPA length? Mine is a 40-char string with upper case, lower case, numbers and other chars and no human words. Would that be secure enough?

 

[oldbag]

Why? Won't it ultimately make it much harder to dictionary attack?

 

[oldbag]

What is kind of weak though is the router displays it as plain text so if someone cracks your router admin password they get the key.