This paper examines the supply chain effects of the most damaging cyberattack in history so far. The attack propagated from the directly hit firms to their customers, causing a four-fold amplification of the initial drop in profits. These losses were larger for affected customers with fewer alternative suppliers. Internal liquidity buffers and increased borrowing, mainly through bank credit lines, helped firms navigate the shock. Nonetheless, the cyberattack led to persistent adjustments to the supply chain network, with affected customers terminating trading relations with directly hit firms and forming new ones with alternative suppliers with a stronger cybersecurity posture.

本文研究了迄今为止历史上最具破坏性的网络攻击对供应链的影响。攻击从直接受到攻击的公司传播到他们的客户，导致最初的利润下降四倍。对于替代供应商较少的受影响客户，这些损失更大。内部流动性缓冲和主要通过银行信贷额度增加的借贷帮助企业度过了冲击。尽管如此，网络攻击导致供应链网络持续调整，受影响的客户终止了与直接受到打击的公司的贸易关系，并与具有更强网络安全态势的替代供应商建立了新关系。