Nicholas Rosario (MasterChen) is currently a VoIP Administrator. He has been published in 2600: The Hacker Quarterly twice for his research on the Asterisk PBX system and has given presentations at BSides Las Vegas and the DEF CON 303 Skytalks. His most recent research blends technology with psychological principles. MasterChen is an active member of the SYNShop hacker space in Las Vegas, NV and a co-founder and host of the weekly GREYNOISE infosec podcast. Twitter: @chenb0x Instagram: @chenb0x
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