Personal Information Of 10 Million MGM Hotel Guests Posted Online

A data breach involving MGM Resorts was posted on a hacking forum, exposing personal information of former hotel guests, including high-profile individuals like Twitter CEO Jack Dorsey and singer Justin Bieber. The breach reportedly occurred last year, and MGM Resorts became aware of it last summer. The company took steps to notify affected guests and hired cybersecurity firms for an internal investigation. MGM Resorts owns numerous hotels in the US and Asia, but it hasn't specified which locations were affected.

When did the hack reportedly occur?

What has MGM Resorts not specified regarding the data breach?