Denis Ryan is Senior Director, Email Fraud for Proofpoint, Inc. Previously, Denis held management positions at several well-known high-tech companies including Nominum (now part of Akamai), Tellabs (now Coriant), Verizon and IBM. As a sales leader of the fastest growing business unit in Proofpoint, Denis oversaw the go to market sales and sales engineering strategy post the Return Path business unit acquisition. The diverse background of IT and security solutions allows Denis to overlay the Proofpoint sales efforts in multiple verticals, most notably Healthcare as Proofpoint has ramped this specialized team to improve email authentication practices. He resides in the Dallas-Fort Worth metroplex, mentors undergraduates for his alma mater (University of Dallas) and volunteers his time for various local charities.