Here are some, not all, the largest the US have experienced in recent history:
MGM Resorts  gettyimages-535829219 "data-original =" https://cnet2.cbsistatic.com/img/hCclFLWdz1CGs-eHodZXB4hNjic=/2020/02/20/485c4c88-9fa9-4261-8862-51b252c64b51b252c64b51b252ty642191061910219109191196356191923591961919235619719635619619192356196196191923561961961963519619192356197356359196191923591963519235919635192359359192359359359359359359359359359359359359359352352192359 field table gettyimages-535829219 “/>
Rebecca Ang / Getty Image s
Rebecca Ang / Getty Image s
When : made public last week
Number of people affected : More than 10.7 million guests
What happened: CNET & sister's sister site, ZDNet, reported that the personal information of more thanon a hacking forum. The information allegedly shared was from a security incident last year, members of the MGM security team told ZDNet. The leaked information contained details such as customers' full names, home addresses, telephone numbers, e-mail addresses, and birth dates.
MGM told ZDNet that it was convinced that no financial, payment card or password data was involved. The hotel chain reportedly reported all affected guests and has since improved network security.
The hotels of MGM include the Bellagio, Aria, MGM Grand, Mandalay Bay, Park MGM, Mirage, New York, New York, Luxor and Excalibur in Las Vegas.
Word with friends
When : September 2-29
Number of people affected : More than 200 million players
What happened: Abefore September 2. The database that the hacker, Gnosticplayers, had access to, contains data from Android and iOS players who had installed the game before 2 September. Gnosticplayers had access to information such as players & # 39; names, email addresses, login ID & # 39; s and more. On September 12, the game's publisher, Zynga, confirmed a data breach for Draw Something and Words with Friends players. In an announcement, the publisher said that the investigation is still ongoing and that it has taken steps to protect accounts.
When : September 26
Number of people affected : 4.9 million customers, drivers and traders
What happened: ByDash, the popular food delivery service, confirmed that. The company indicated that users who registered after April 5, 2018 were not bothered. An infringement investigation has established that access has been gained to information such as names, e-mail addresses, delivery addresses, order history, telephone numbers, and passwords. The company said the last four digits of the credit cards and bank account numbers of some consumers were also used.
The food delivery company said it was aware of suspicious activity with an external service provider earlier this month. The investigation revealed that an unauthorized third party opened certain user data at the beginning of May.
When: August 20
Number of persons affected : Tens of thousands of users and more than 160 million records
What happened: A report from cyber security company SpiderSilk, obtained by TechCrunch, found that. Because the company's database was not password protected, the credit card numbers and credit card details of customers remained visible. The database remained online until Tuesday. MoviePass did not immediately respond to a request for comment.
This is not the first time that MoviePass has landed in hot water. The service was previously confronted with criticism of changing passwords to prevent users from ordering tickets. The company has also been accused of peak prices during peak times. Last year the company would reactivate accounts and ask former customers to sign out.
When: July 30, 2019
Number of people affected: 100 million people
What happened: Financial company Capital One had a data breach that affected 100 million credit card requests, 140,000 citizen service numbers and 80,000 bank account numbers. According to the bank, if you applied for a card in the US between 2005 and 2019, you are probably part of the infringement.
Capital One said no credit card account numbers or login details were exposed. The infringement still concerned names, addresses, postal codes, telephone numbers, e-mail addresses and birth dates. The FBI arrested Paige A. Thompson, a technician who has been nicknamed & # 39; whimsical & # 39; used. Thompson was accused of computer fraud and abuse for the hack.
Capital One has affected affected customers, but in the meantime you can take steps to check your accounts for fraud.
SOPA Images / Getty Images
When: About mid-May 2017
Number of people affected: About 143 million people
What happened: Hackers have stolen customer names, social security numbers, birth dates and addresses.. In addition, hackers have recovered 209,000 credit card numbers and 182,000 documents with personal information. It is unclear what the hackers did with the data at that time. The company estimates that is affected, but that does not apply to victims outside the country. It was the biggest known leak of 2017.
worth since . The credit reporting company agreed to pay $ 575 million and up to $ 700 million on July 22 as part of a .
Number of people affected: 383 million
What happened: Malware infected Starwood Hotels security systems, including Sheraton, W Hotels, Westin , Le Meridien, Four Points by Sheraton, Aloft and St. Regis – in 2014, and the Marriott hotel group subsequently acquired Starwood in 2016. In November 2018, Marriott discovered and unveiled a four-year hacking campaign that attacked the Starwood reservation database. Lawmakers demanded future data privacy and security.
The 500 million guests who were originally thought to be affected were reduced to 383 million in January. In addition to names, addresses, telephone numbers, credit card details and e-mail addresses, hackers have also swept millions of non-encrypted passport numbers.
Number of people affected: 87 million
What happened: Facebook's Cambridge Analytica scandal is not the most recent or the biggest, but it is arguably the most infamous. In short, the popular social media site was deceived by researchers who had access to Facebook user data. The researchers then misused the data for political advertisements during the 2016 US presidential election.
The number of people whose data were quickly compromised rose in April 2018 to.
The data company was also linked to the then presidential candidate Donald Trump. Trump & # 39; s campaign hired Cambridge Analytica to conduct data operations during the 2016 elections. Steve Bannon, who was to become Trump's main strategist, was reportedly also vice president of the Cambridge Analytica board. The company helped the campaign identify voters with advertisements, and gave advice on how to best target the approach, such as where to stop the campaign. It also helped with strategic communication, such as what to say in speeches.
Number of persons affected: 80 million
What happened: The hackers who infiltrated the national insurance schemes have the names, birth dates, member ID & # 39 ; s, social security numbers, addresses and more of almost 80 million current (then) and former employees. Shortly after the hack was revealed, Advocates General Anthem accused clients of not reporting the seriousness of the situation. In June 2017, Anthem agreed to pay $ 115 million to settle the data breach class action lawsuit of the 2015 hack.
Number of people affected: 3 billion
What happened: Yahoo users were encouraged to change their password after hackers stole personal information that related to around half a billion e-mail accounts. At the time, the figures made it the largest data breach in history. Initially, the victims were reported at 500 million, making the hack still the largest in history. Yahoo slowly increased the number but reported in 2017 that none of its 3 billion accounts had remained intact in the original infringement. These are 3 billion names, e-mail addresses, telephone numbers, birth data, encrypted passwords and non-encrypted security questions.
The culprit? A 23-year-old Russian hacker named Karim Baratov. Baratov was sentenced to five years in prison, paid victims a refund and $ 2.25 million in fines. Yahoo also did not go without punishment. The company had to pay $ 50 million in damages and provide credit monitoring for at least two years for around 200 million people who had been hacked.
This story is updated periodically when new developments are announced.