Anyway, We're sharing wifi sa neighbor namin. Sa kanila yung router and kami lang dalawa nakakaalam password. Nagbabasa basa ako about security issues ng wifi and it's really not stable. Is it really possible na my neighbor can monitor EVERYTHING i do in the internet? (read my emails, FB chat, sites i visit, even mga post ko sa forums) and can access my desktop or phone content (i use wifi din sa phone ko) without my knowledge?
Question is, bago ba ang router nila? If it is old then the router might be using WEP (a type of WIFI security) which can be easily hacked in just a few minutes using the right hacking tools. If you are using Windows 7 you can see the security type when you hover the mouse over the Wifi network icon near the system time, and then hover the mouse over the name of your neighbor's network.
The most secure network these days is the WPA2-PSK
FYI, MAC addresses can be spoofed so the security isn't foolproof. Anyway, it's adds a bit more hurdle for "less techie" hackers.
If your email, social network (facebook) and other websites offer "https" or "secured browsing" settings, then use it. It protects you from those wifi hackers.
I'd actually get worried MORE on accessing public wifi (coffee shops, SM free wifi, open wifi's on the road) rather than your neighbor's wifi. I'd put more trust on my neighbor's wifi, unless I get into personal conflicts with them. There are plenty of people accessing the public wifi, and there could be one curious hacker out there sniffing your data.