Tenable is a cybersecurity company whose products help organisations find and reduce weaknesses in their IT environment. Its Nessus scanners detect vulnerabilities, Tenable Vulnerability Management is a cloud-based platform, and Tenable One groups exposure management across the whole attack surface, including cloud, identities and operational technology. Tenable describes Tenable Security Center as managed on premises. Customers include organisations in financial services, energy, healthcare and government.
Tenable, Inc. is headquartered in Columbia, Maryland, and is listed on the Nasdaq. As a US company it is subject to US law, including the CLOUD Act. Tenable's documentation lists cloud sites in several regions: alongside US sites, there is a Frankfurt site (AWS eu-central-1) and a London site. Which site hosts your tenant is shown in your licence information. The software is proprietary and not open source. European organisations can therefore choose a European site, or run Security Center on premises, but the vendor itself remains under US jurisdiction.