If you're thinking about häçking your neighbor's PLDT wifi then unfortunately you won't be able to do that. Before yes it used to be possible to do this but now that PLDT has upgrade their internet infrastructure, it'll be very hard to penetrate the then weak PLDT system. I used to be able to use freely our neighbor's pldt wifi using the old wifi bypassing tricks until they probably noticed somebody's using their wifi so they changed it. After that I tried using the old and the new tricks but nothing had worked and it has to do with the upgrades they've been doing from time to time. If you're thinking of häçking other wifi apart from pldt then good luck trying because it'll take you some time to achieve that.