The risks and advantages of SIF as a speculative instrument will be highlighted.

SIF中的风险和优点，作为投机工具将凸显。

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SIF creates a security context object, which is a placeholder for security-related information.

SIF 创建了一个安全上下文对象，这是一个与安全相关的信息的占位符。

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SIF checks whether a session object exists and contains a security context.

SIF将检查是否存在一个会话对象，以及它是否包含安全上下文。

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After its completion, the President directed the Corporation for National and Community Service (CNCS) to launch a cornerstone initiative of the new law, the Social Innovation Fund (SIF).

WHITEHOUSE: The Social Innovation Fund Adds Four New Intermediaries to its Portfolio | The White House