Cross-Border Data Sharing Under the CLOUD Act (CRS Report for Congress)
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Release Date |
Revised April 23, 2018 |
Report Number |
R45173 |
Report Type |
Report |
Authors |
Stephen P. Mulligan |
Source Agency |
Congressional Research Service |
Older Revisions |
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Summary:
Law enforcement officials in the United States and abroad increasingly seek access to electronic
communications, such as emails and social media posts, stored
on servers and in data centers
in
foreign countries. B
ecause the architecture of the
i
nternet all
ows t
echnology companies to
store
data
at a great
distance from the
physical location of
the
ir customers
, electronic communications
that
could
serve
as
evidence of a crime often are not housed in the same country where the crime
occurred. This
disconnect
h
as caused governments around the world, including the United States,
to seek data stored outside their territorial jurisdiction
s
.
In the
Clarifying Lawful Overseas Use of
Data (CLOUD) Act,
Congress enacted
one
of
the first major changes
in years
to U.S. la
w
governing
cross
-
border
access to
electronic communications
held by private companies.
The CLOUD Act
has two major components. The first
facet
addresses
the U.S.
government
’s
ability
to compel technolog
y companies
to disclose the contents of electronic co
mmunications
stored on the companies’ servers and data
centers
overseas. The Stored Communications
Act
(SCA) mandates that
certain technology companies
disclose the contents
of electronic
communications pursuant to warrants
issued by U.S. courts
based
on p
robable cause that the
communications contain evidence of a crime.
But a dispute
arose
over whether warrants
issued
under
the
SCA
c
ould
compel disclosure of data held outside the territorial ju
risdiction of the
United States
. While
the Supreme Court was se
t to resolve
this issue in
United States v. Microsoft
,
the CLOUD Act amended
the SCA
to require that technology companies provide data in their
possession,
custody, or control in response to an SCA warrant
—
regardless of whether the data is
located in the U
nited States.
On April 17, 2018, the Supreme Court ruled that the change in law
mooted the
Microsoft
case.
The second facet of the CLOUD Act address
es
the reciprocal issue of foreign governments’
ability to access data in the United States as part of their
investigation and prosecution of crimes.
Prior to the CLOUD Act, foreign nations seeking data in the United States were required to
request the assistance of the U.S. government through either
m
utual
l
egal
a
ssistance
t
reaties
(MLATs) or judicial instrumen
ts known as letters rogatory. Requests under either instrument are
reviewed by U.S. courts before disclosure to the foreign nation
can be
authorized, but U.S. and
foreign officials criticized
the
processes as inefficient and unable to accommodate the incre
asing
number of data requests in the digital era.
The CLOUD Act responds to calls for modernization by authorizing the executive branch to
conclude a new form of international agreement through which select foreign governments can
seek data directly from U
.S. technology companies
without individualized review by the U.S.
government
.
Agreements authorized by the CLOUD Act would remove legal restrictions on
certain foreign nations’ ability to seek data directly from U.S. providers in cases involving
“serious
crimes” when not targeting U.S. persons,
provided the
Executive has
determined that the
foreign nation’s law
s
adequately protect privacy and civil liberties, among other requirements.
While
t
he CLOUD Act
conditions approval of covered agreements upon a hos
t of restrictions,
commentators debate whether these agreements
will provide adequate protections for privacy,
human rights, and civil liberties.