+**15c3** refers to Rule 15c3-3 of the Securities Exchange Act, a fundamental mandate from the [SEC](/wiki/sec) for registered [broker-dealers](/wiki/broker-dealer). This rule ensures the protection of customer assets by requiring the segregation of funds and securities and maintaining a special reserve account. It is a cornerstone of investor confidence within financial markets.
+## See also
+- [Customer Protection](/wiki/customer_protection)
+- [Financial Regulation](/wiki/financial_regulation)
+- [Securities](/wiki/securities)
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