I think the military commissary's freezers were hacked

	I think the military commissary's freezers were hacked(signalandsilence.substack.com)
	393 points by jcurbo 10 days ago \| 235 comments
	tl;dr: Refrigeration systems at six-plus military commissaries across the US failed near-simultaneously in late August 2026, with Fort Huachuca notably reporting all freezers entered "defrost mode" while power remained on—a function controlled remotely via DeCA's Refrigeration Monitoring and Control System (RMCS). The author notes suspicious timing alongside recent NSA/CISA warnings about state-sponsored actors targeting IoT and industrial control systems, plus published vulnerabilities in common commercial refrigeration controllers (Danfoss, Copeland). No cyberattack is confirmed—aging infrastructure remains a plausible explanation—but the Pentagon has now acknowledged a "possible refrigeration disruption," and FOIA requests have been filed.
	HN Discussion: ~Likely misconfiguration or update error rather than a hack, though timing is suspicious ↑Known poor security of industrial PLCs makes a hack plausible ↑Suspicious failure mode (defrost-to-heat) and 2AM timing suggest deliberate attack ↓Article jumps to hack conclusion without establishing baseline failure rates ↓Attack motive questionable—low upside for burning valuable access on freezers