MoneyGram has confirmed that hackers accessed and stole customers' personal information and transaction data following a cyberattack on September 20. The breach resulted in a week-long outage, affecting the company's website and app. The compromised data includes names, addresses, phone numbers, dates of birth, and even some Social Security numbers. MoneyGram is currently investigating the extent of the breach, though it has not specified how many customers are impacted. The incident has been reported to U.K. data protection regulators as required by law.