Black Hat USA 2016: Digital Communication Security and Usability Tradeoffs for Key-Directory Encryption Systems. This Briefing explores the trade-offs between convenience and security, from the end-user perspective, and what the implications may be. This talk discloses the dangers of spear phishing on Twitter. Participants will be able to recognize the strategies hackers potentially use to access their private information and in turn, understand how to enhance security for their own digital interactions. This Training provides multiple free online resources that surpass typical searching restrictions.”]