Personal Data of More than 142 million MGM Hotel Customers Leaked on Telegram

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On 22 May 2022, cybersecurity researchers from vpnMentor unearthed four archives of files containing 8.7GB of data on Telegram. The data dumped on Telegram contained customer information from before 2017 including names, postal and email addresses, phone numbers, and dates of birth. 

Although there were 142 million records in total, the number of impacted customers is believed to be around 30 million. The data seems to have been stolen from MGM Resorts, an American chain of hotels and an entertainment company whose endpoints were compromised in February 2019. 

The records included government officials, chief executive officers, and others, notable among them, then Twitter Inc. CEO Jack Dorsey and singer Justin Bieber. 

Forward to July 14th, 2020, a hacker going by the online handle of NightLion listed the 142 million MGM hotel guest records stolen from the breach monitoring site DataViper for sale at a price of $2,900 on now seized Rainforums and dark web marketplaces. 
Personal Data of More than 142 million MGM Hotel Customers Leaked on Telegram