Big Data as a National Security Issue
University of Chicago Legal Forum
Volume 2024
Article 9
2025
Big Data as a National Security Issue
Paul B. Stephan III
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Stephan, Paul B. III (2025) "Big Data as a National Security Issue," University of Chicago Legal Forum: Vol.
2024, Article 9.
Available at: https://chicagounbound.uchicago.edu/uclf/vol2024/iss1/9
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Big Data as a National Security Issue
Paul B. Stephant
ABSTRACT
Modern enhancements of data mining have unfolded in a legal near-vacuum.
No extant legal system adequately specifies the property rights in the information
elements that make up big data. The miners rely on their technicalability to gather
and exploit, without waiting to confirm their entitlement to do so. Innovatorshave
tolerated the legal vacuum because, as a practicalmatter, most potentially valuable information is accessible. Information by its nature implies a sender and a recipient. This sharingrelationshipnecessarily complicates ownership, in particular
the power to exclude. At the same time, the capacities that the mining of big data
empowers are sufficiently novel to fall outside the scope of traditionalregulatory
regimes, including those focused on nationalsecurity.
This Article considers the nationalsecurity implications of this legal vacuum.
It conceives of instances of big data as emergent systems. It argues that the potential benefits and risks of big data demandproperty rules that optimize the value of
data systems, accountingfor potential risks as well as benefits, while safeguarding
the interestsofpersons who originateinformation. The key insight is to distinguish
big data as an emergent entity from the countless events that constitute collectable
information. The distinction allows us to think separately about the propertyentitlements and regulatory constraints attributableto the elements and the systems.
This analyticalstep in turn clarifies which legal approachesmay advance national
security interests consistent with other values and commitments.
I.
INTRODUCTION
Over the course of the past quarter-century, big data has gained
profound economic and national security significance. It is a necessary
predicate for a wide range of essential managerial functions as well as
t John C. Jeffries, Jr., Distinguished Professor of Lawand Senior Fellow, Miller Center of
Public Affairs, University of Virginia. I am grateful to Stewart A. Baker, Ashley S. Deeks, and
Kristen Eichensehr for comments and criticism, and to the editors of The University of Chicago
Legal Forum for their thoughtful and helpful suggestions. Responsibility for errors, blunders, and
misjudgments remains mine alone. My work as Special Counsel to the General Counsel of the U.S.
Department of Defense encompassed some of the issues I discuss here, but I do not rely on or
otherwise make use of any privileged or classified information that came my way. The views found
here are entirely my own and should not be attributed to the U.S. government or the Department
of Defense.
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[2024
predictive analysis. It supports advanced cyber operations by enhancing hacking (cyber penetration of and interference with data sets) as
well as cyber defense. It forms the backbone of most states' projects to
shape the world to their interests (projecting power) and to defend those
interests in a world where adversaries strive to acquire and exploit
their own big data resources.
Increasingly ubiquitous artificial intelligence (AI) tools count as
the most recent breakthrough in big-data-dependent information processing. 1 Al represents, however, only a jazzier variant of a general
long-term practice, the mining of vast stores of information to detect
patterns and derive predictions. 2 Data mining, carried out by searchand-classify algorithms that update and reconfigure themselves autonomously, allows people to extract meaning and value from amassed information for myriad benign purposes. At the same time, it offers many
opportunities for abuse. It can pollute the information environment
with deep fakes and other lies, drive hyper-surveillance that degrades
individual autonomy and privacy, and promote risky choices, whether
financial or military. 3 It also provides better means to disrupt and destroy the information-based capacities of others. 4
Modern enhancements of data mining have unfolded in a legal
near-vacuum. No extant legal system adequately specifies the property
rights in the information elements that make up big data. 5 The datacollectors and miners rely on their technical ability to gather and exploit, without waiting to confirm their entitlement to do so. They have
proceeded in the face of the legal vacuum because, as a practical matter,
most potentially valuable information is accessible, in the sense that it
does not lie behind effective barriers. Information by its nature implies
See MUSTAFA SULEYMAN & MICHAEL BHASKAR, THE COMING WAVE: TECHNOLOGY, POWER
AND THE 21ST CENTURY'S GREATEST DILEMMA 16-19 (2023); cf. Dep't of Defense, Executive Summary: DoD Data Strategy, Unleashing Data to Advance the National Defense Strategy 4
(2020), https://media.defense.gov/2020/Oct/08/2002514180/-1/-1/0/DOD-DATASTRATEGY.PDF [https://perma.cc/Q2BW-9QCA] ("Artificial intelligence ...
is long-term data
competency grounded in high-quality training-quality datasets ... that are the pieces of information and associated labels used to build algorithmic models.").
2 See KAI-FU LEE, Al SUPERPOWERS: CHINA, SILICON VALLEY, AND THE NEW
WORLD ORDER
14, 104-12 (2018); VIKTOR MAYER-SCHONBERGER & KENNETH CUKIER, BIG DATA: A REVOLUTION
THAT WILL TRANSFORM HOW WE LIVE, WORK, AND THINK 6-7 (2014).
a See PAUL B. STEPHAN, THE WORLD CRISIS AND INTERNATIONAL LAW: THE KNOWLEDGE
ECONOMY AND THE BATTLE FOR THE FUTURE 276-77 (2023).
4 See Paul B. Stephan, Big Dataand the Future Law of Armed Conflict in Cyberspace, in THE
FUTURE LAW OF ARMED CONFLICT 61-62 (Matthew C. Waxman & Thomas W. Oakley eds., 2022).
e Admirers of the European Union (EU) would beg to differ, arguing that it has developed
within its own legal system rules that will dominate international practice. See ANU BRADFORD,
DIGITAL EMPIRES: THE GLOBAL BATTLE TO REGULATE TECHNOLOGY 105-45 (2023). Pessimism
about the resilience of the EU undercuts that assertion; see also STEPHAN, supra note 3, at 83, 87-
89.
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a sender and a recipient. 6 This sharing relationship complicates ownership by requiring stakeholders to consent to any rule of exclusion. Absent agreement, the general default is open access. At the same time,
the capacities that the mining of bi (...truncated)