Nsl
NSL is an acronym with multiple meanings, of which the most widely known in a legal and security context is National Security Letter. In the United States, a National Security Letter is a form of administrative subpoena issued by federal agencies, principally the Federal Bureau of Investigation, to obtain certain records from third parties such as telecommunications providers, financial institutions, or internet service providers. An NSL allows the government to compel disclosure without a court warrant and is often accompanied by a nondisclosure directive that forbids the recipient from discussing the request.
Scope and limitations: NSLs typically cover metadata and other records related to a person or account, rather
Oversight and reform: NSLs originated during the post-9/11 security framework and have been subject to legal
Other uses: NSL can refer to other terms in different contexts, such as National Security Law in