Subdomain takeover at segway.shipt.com

A security researcher identified a stale DNS record that pointed to a legacy 3rd party service. This allowed for a subdomain takeover, which the researcher provided a well written and detailed Proof of Concept (POC). Shipt's security team acted immediately to validate the vulnerability and remove the DNS record, remediating the issue. Researcher confirmed that the issue was resolved. Thank you @plenum for helping keep Shipt secure!