 COLUMBIA, Md., April 27, 2021 GLOBE NEWSWIRE -- Tenable Holdings, Inc. Tenable Nasdaq: TENB, the Cyber Exposure company, today announced that it completed the acquisition of Alsid SAS Alsid, a leader in securing Active Directory, on April 26, 2021. The acquisition combines the complementary strengths of two cybersecurity innovators and marks an important milestone in Tenables vision to help organizations understand and reduce cyber risk across the entire attack surface. Today, Tenable also announced the availability of Tenable.ad, a new solution leveraging Alsid technology to secure Active Directory environments and disrupt one of the most common attack paths in both advanced persistent threats and common hacks. 