CHALKFUN Foreignness Determination

Title

CHALKFUN Foreignness Determination

Subject

TAPERLAY

Description

This document is an excerpt from an NSA training tool explaining how to determine whether a targeted device is being used outside the United States. It illustrates a hypothetical example involving a query to CHALKFUN, the tool used to search FASCIA, the NSA's database of device-location information.

Creator

National Security Agency

Publisher

The Washington Post

Relation

Snowden

Language

en

Date:Created

2009-02

Source:Classification

Unknown

Source:Redactions

Identifying information has been redacted

Report:Creator

Ashkan Soltani

NumPages

1

CreatorOffice

NSA

Date:Leaked

2013-12-04

Distribution

Unknown

Surveillance Programs

CHALKFUN; FASCIA

Collection

Citation

National Security Agency, “CHALKFUN Foreignness Determination,” Snowden Archive, accessed January 30, 2023, https://grid.glendon.yorku.ca/items/show/43.

Item Relations

This item has no relations.