May 2021 Cyber Attacks

May’s cybersecurity landscape featured multiple high-impact incidents: a DarkSide ransomware attack that took Colonial Pipeline offline for several days (affecting roughly 45% of East Coast fuel supply), a REvil-attributed ransomware disruption of JBS meatpacking operations, a Conti attack that crippled Ireland’s national health IT systems with likely patient data exposure, and an exposed Peloton API that risked user PII—collectively highlighting severe impacts to critical infrastructure, supply chains, and personal data.