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In this tutorial, the speaker discusses the history of modern cryptography and its relevance to personal privacy and national security. The talk highlights the importance of cryptographic algorithms that protect online transactions, such as purchases on Amazon and secure emails, by scrambling data to prevent unauthorized access. However, the speaker notes the ongoing threat posed by skilled bad actors who can break certain cryptographic measures, putting both individual privacy and national secrets at risk. The presentation aims to succinctly connect these concepts within a brief timeframe.