Unverified50% confidenceFactExact time
第三方原则源于1979年的Smith v. Maryland案，最高法院裁定电话拨号记录不受第四修正案保护，因为用户自愿将号码信息传递给电信公司
1
Sources
50%
Confidence
Long-term
Relevance
8/16/2026
First Seen
Sources
Related Claims
VerifiedThe third-party doctrine originates from Smith v. Maryland (1979), which holds that information voluntarily disclosed to a third party does not enjoy a reasonable expectation of privacy under the Fourth Amendment.77% similarVerifiedThe 2018 case Carpenter v. United States ruled that obtaining long-term cell phone location records requires a warrant, partially limiting the third-party doctrine.60% similarUnverifiedIn 2021, the U.S. Supreme Court ruled in Van Buren v. United States that merely accessing information one is authorized to access but for an improper purpose does not constitute a violation of the CFAA.58% similarUnverified最高法院在Printz v. United States（1997）案中确立了反征用原则，限制联邦政府强制调用地方执法资源56% similarUnverified2011年美国最高法院在AT&T Mobility v. Concepcion案中以5比4裁定各州不得以'不公平'为由拒绝执行仲裁协议中的集体诉讼豁免条款54% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/757481API
curl https://kongchang.com/api/v1/knowledge/claims/757481MCP
get_claim(id=757481)