On June 25 2018, the researcher Patrik Hudak reported a sub-domain takeover on Starbucks.com.
He found that svcgatewayus.starbucks.com was pointing to the Microsoft Azure platform. As Azure is a cloud provider, it is very easy to create a new bucket associated to this sub-domain and subsequently put Starbucks at risk.
If you want to read more about this bug, visit the following link: https://hackerone.com/reports/325336.