US Military Operates Live Bitcoin Node for Cybersecurity Research

The US military has confirmed operating a live Bitcoin node for experimental cybersecurity purposes. According to Admiral Samuel Paparo, head of US Indo-Pacific Command, INDOPACOM is running a node on the Bitcoin network to monitor network traffic patterns and study how the proof-of-work consensus mechanism resists manipulation.

Paparo testified before Congressional committees in April 2026, where he explicitly tied the Bitcoin node operation to the competitive dynamic with China. He described Bitcoin as an essential tool for cryptography, blockchain technology, and proof-of-work mechanisms, emphasizing that the military's interest lies in the network's monitoring capabilities, not in accumulating Bitcoin as a financial asset.

The initiative falls under what INDOPACOM classifies as an 'experimentation' phase, with the goal of securing digital infrastructure. By operating a node, INDOPACOM can test defensive concepts for protecting military communications and data infrastructure.