Core Insights - The modernization of the U.S. Army's battlefield communications network is being executed by companies such as Anduril and Palantir, but it faces significant security challenges and vulnerabilities [1] Group 1: Companies Involved - Anduril and Palantir are key players in the modernization efforts of the U.S. Army's communications network [1] - The initiative aims to enhance the battlefield communications capabilities of the U.S. Army [1] Group 2: Security Concerns - The modernization efforts are described as being "rife with fundamental security problems" [1] - There are notable vulnerabilities identified within the new communications network being developed [1]