This document discusses the threats posed by email security breaches such as spam, phishing, and spoofing. It notes that in Q3 of 2013, 3.9% of all email contained malicious attachments, 68.3% was spam, and since 2005 there have been over 3,763 data breaches exposing over 608 million records in the US. The document recommends ways for companies to protect their networks from such threats, including using anti-virus software, anti-spoofing technology, email communities, and IP address reputation monitoring. It also stresses the importance of notifying affected parties if a breach occurs.