One of the most important examples is the Clarifying Lawful Overseas Use of Data Act—commonly known as the CLOUD Act—enacted in the United States in 2018. Its implications are increasingly relevant for organizations assessing how sensitive information, communications services, and digital infrastructure should be procured and managed.
What the law actually does
The CLOUD Act clarifies that certain providers subject to US jurisdiction can be required to disclose data within their possession, custody, or control—regardless of where that data is physically stored. As a result, data hosted in an EU facility may still be subject to a lawful US request if the provider falls within the scope of the relevant US legal framework.
The location of the server does not determine the jurisdiction of the data. The provider’s home country does.
The reach of the CLOUD Act extends beyond providers headquartered in the US. It applies to any company with a physical presence in the US and can extend to EU entities whose service provider has a corporate link to the US, such as a US parent company or subsidiary. For European organizations using services with US corporate ties, it is worth understanding whether and how those connections affect the legal framework governing their data.
In practice, information that may be subject to disclosure includes account information, emails, chat messages, and files stored within the service. Requests are typically subject to oversight by a court or independent authority and must relate to the prevention, detection, investigation, or prosecution of serious crime.