In May 2020, BlueScope Steel, headquartered in the Port of Kembla, USA, fell victim to a ransomware attack that severely disrupted its IT systems. The incident primarily targeted manufacturing and sales operations in Australia, leading to widespread disruptions in business activities nationwide. The attack forced operational halts, impacted production timelines, and strained supply chain logistics, causing financial losses and reputational damage. While the company’s cybersecurity team responded swiftly to contain the breach, the attack’s ripple effects persisted, affecting customer orders, internal workflows, and market confidence. The incident underscored vulnerabilities in critical industrial infrastructure, highlighting the growing threat of ransomware against large-scale manufacturing enterprises. No explicit mention was made of data exfiltration, but the operational outage alone posed significant financial and logistical challenges, reinforcing the need for robust cyber defenses in industrial sectors.