MAC address filtering and WEP is good for preventing casual misuse – read: 95% of the people you re trying to keep out who have no hacking “tools” but will just steal your open wifi. It’ll get beat in minutes (literally, single digit minutes) by anyone with hacking tools.

WPA/WPA2 with good passwords is secure enough for protecting your porn habits from prying eyes, or whatever it you think people will care about getting into your business for.

The techniques that are technically possible – I mean, power signal leakage, freezing your memory to get encryption keys, and even the monitor signal leakage, etc — these are not the hacks of “hackers” as much as governments and industrial espionage types, maybe. You aren’t important enough to draw that kind of technological threat. The individual’s threat model is more along the lines of wifi snoopers, virus/trojan keyloggers, physical cameras, etc…

Know your threats and design your protection against them as best you can, and just accept that there’s no perfect security against a foe with unlimited resources and motivation – fortunately, most of us will never face that foe. A properly shielded cable isn’t worth a hill of beans if your wife still leaves herself logged into her computer 24/7 without locking the machine — it’d be easier for someone to break in and install a quick keylogger on her machine than to try to tap into my power line to pick out signals.

Interesting idea, though – signal leakage via improperly shielded cables. Cool.

Each key sends a unique signal from the keyboard to the PC. This is an electrical signal that both leaks into the ground system and radiates through space. A system used to monitor these signals would only provide a display of keys typed.

If you aren’t handling certificate issues correctly you could get in by man in the middle. Not likely though.

If you actually looked at some of the links you’d understand that WPA2 has not been “cracked.” The tools that come up all use brute force methods. Any encryption system is vulnerable to a brute force attack, the solution is simply to use a strong password.

You can crack simple, insecure passwords with dictionary attacks and short random passwords by guessing (brute forcing), but the time it would take to crack a complex password longer than 10 characters is prohibitive. Unless you have thousands of years to wait around, anyway.

Proper “WPA2″ encryption uses secure AES-based CCMP, and thus far there are no known exploits.

On the other hand, checking your email over unencrypted public wi-fi could be iffy…

FakinMyMAC is correct.

Obviously you have never attended any hacking conferences or have done a search on MAC Spoofing or you wouldn’t place so much confidence in MAC filtering.

Yeah, try that with any hacker older than 4 in the area and watched yourself get pwned.

1.)Go to Google
2.)Enter “rainbow table”
3.)Change WPA password from “Dog” or “Bartholomews” to a 63 character monster password
4.)Wait for many times the age of the universe to crack your new password
5.)Don’t spread misinformation

If you use WPA to its full capability, you can bet your life on it against any existing foe. Though 16 char’s #5 mentions are fair defense, that is not the full capability. Random 63 characters from the complete available character set provide full protection. Anyone using less may ask themselves: why?