Hey

Can anyone please tell me what is ethernet address and its role in security. If someone knows my PC ethernet address, how would it affect my security? What can he do with that ethernet address?
I have some knowledge about IP address, many ways of tracing and hiding IP, but I don't know if ethernet address can also be traced. I really wanna know ethernet address is useful for what purpose? Thanks for any help.

Ethernet address is an address assigned to network interface cards by the manufacturer and they identify a computer or a machine.IP address is an address assigned to a machine connected to a network. The assignment of addresses can be static or dynamic. This is analogous to phone numbers assigned to each phone in a region.