Email Spoofing
E-mail spoofing is a term used to describe (usually fraudulent but can sometimes be legitimate) e-mail activity in which the sender address and other parts of the e-mail header are altered to appear as though the e-mail originated from a different source. E-mail spoofing is a technique commonly used for spam e-mail and phishing to hide the origin of an e-mail message.

EPON
EPON or GEPON (Ethernet PON) is an IEEE/EFM standard for using Ethernet for packet data. 802.3ah is now part of the IEEE 802.3 standard. There are currently over 25 million installed EPON subscribers. Commercial upgrade capability to 10G EPON will become available in 2010 (see IEEE 802.3av, 10G-EPON).