Hello!! Here I Got Some Question I Really Want To Know......

1)How To Know when Somebody using My Internet cause my wifi recently has been hack.
even wpa2 can be fast to Crack with cuda by Nvidia right


2)If there got A thing we can called it Power Box? Or whatever as long as that thing
will store power inside it like batteries and compatiable with laptop.i really wan
to play my laptop with a battery that can work for more than 10 hrs.

anyway thanks to everyone on this forum really helpful and sorry for my bad english...