Marriott International Data Breach of 2018
Prevented by: HSF, PEC, EGR
In 2018, Marriott International experienced a data breach affecting approximately 500 million guests with compromised personal information including names, addresses, and passport numbers. The breach, linked to the Starwood reservation system acquired by Marriott, involved unauthorized access dating back to 2014, facilitated by malware known as remote access trojans (RATs). The incident raised concerns about potential involvement of state-sponsored actors and resulted in significant regulatory scrutiny, including fines under GDPR.