2017 — Hyatt Hotels Suffers 2nd Card Breach in 2 Years 2017 Unknown records affected Share on X Data compromisedUnknown Technical writeup Hyatt Hotels Suffers 2nd Card Breach in 2 Years Root cause Malware: RAM scraper Referenceshttps://www.reuters.com/article/us-hyatt-hotels-cyber/hyatt-hotels-discovers-card-data-breach-at-41-properties-idUSKBN1CH2WP