Why should I hide my MAC address of my PSP?

Question

I saw a lot of people on video blogs hiding their MAC address on their PSP.... and I was just wondering.... what could someone do with someone else's MAC address?

Answer 1

Nothing really unless they

4.1           MAC Address Spoofing

The attacker generally desires to be hidden.  But the probing activity injects frames that are observable by system administrators.  The attacker fills the Sender MAC Address field of the injected frames with a spoofed value so that his equipment is not identified.

Typical APs control access by permitting only those stations with known MAC addresses.  Either the attacker has to compromise a computer system that has a station, or he spoofs with legitimate MAC addresses in frames that he manufactures.  MAC addresses are assigned at the time of manufacture, but setting the MAC address of a wireless card or AP to an arbitrary chosen value is a simple matter of invoking an appropriate software tool that engages in a dialog with the user and accepts values.  Such tools are routinely included when a station or AP is purchased.  The attacker, however, changes the MAC address programmatically, sends several frames with that address, and repeats this with another MAC address.  In a period of a second, this can happen several thousand times.

When an AP is not filtering MAC addresses, there is no need for the attacker to use legitimate MAC addresses.   However, in certain attacks, the attacker needs to have a large number of MAC addresses than he could collect by sniffing.  Random MAC addresses are generated.  However, not every random sequence of six bytes is a MAC address.  The IEEE assigns globally the first three bytes, and the manufacturer chooses the last three bytes.  The officially assigned numbers are publicly available.  The attacker generates a random MAC address by selecting an IEEE-assigned three bytes appended with an additional three random bytes.

and

Defeating MAC Filtering

Typical APs permit access to only those stations with known MAC addresses.  This is easily defeated by the attacker who spoofs his frames with a MAC address that is registered with the AP from among the ones that he collected through sniffing.  That a MAC address is registered can be detected by observing the frames from the AP to the stations.

Answer 2

useless theres no point to spoofing a PSP mac adress, waste of time.