The issue appears to have begun sometime on Friday 20 September, when customers began to report problems, but it was at first identified as a simple network outage affecting connectivity.
Following further investigation, MoneyGram posted more details of the incident to social platform X
on Monday 23 September. It said: “MoneyGram recently identified a cyber security issue affecting certain of our systems. Upon detection, we immediately launched an investigation and took protective steps to address it, including proactively taking systems offline which impacted network connectivity.