QWEST CORP

Lumen Technologies' Item 1C cybersecurity disclosure describes its risk management program, governance structure (Risk and Security Committee, CSO, CIRT/CSWAT teams), and third-party vendor risk management. The filing notes some prior cyber attacks have resulted in security incidents but states none have had or are reasonably likely to have a material adverse effect. No specific incident, count, threat actor, or data-type detail is disclosed.