Amazon's Integrated Security team disclosed details of a "years-long" Russian state-sponsored (GRU) cyber campaign (2021-2025) targeting Western critical infrastructure and AWS-hosted networks. The threat actor utilized misconfigured network edge devices for credential harvesting, though Amazon identified affected customers and disrupted operations. AMZN closed at $222.56 on December 16, and is currently showing a pre-market move of +1.14% to $225.10 on December 17, 2025, unrelated to this announcement.