Company: UZF
Filing Date: 2025-02-21
Form Type: 10-K
Source: 0000821130-25-000023
Chunk: 40

Company: ARRAY DIGITAL INFRASTRUCTURE, INC.
Filing Date: 2025-02-21
Form: 10-K
Item: Item 1C
Chunk 40
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Item 1C. Cybersecurity

The UScellular information security program is based on a defense-in-depth approach and aligns with the National Institute of Standards and Technology (NIST) cybersecurity framework. Security control and maturity assessments are conducted periodically leveraging this standard. UScellular also leverages internal and external auditors and consultants to perform independent assessments and tests of security controls. The assessment results are used to drive continuous improvement in the UScellular cybersecurity control environment, as well as to manage potential data security risks of third-party service providers. UScellular identifies risks across the threat and vulnerability landscape using various commercial, government, vendor and publicly available information sources and tools. Risks related to third-party providers who have access to UScellular data and systems are identified, assessed and managed through a formal third-party risk assessment process. Third-parties who access sensitive company or customer information are contractually obligated to meet specific privacy and security requirements. The UScellular security operations program includes active monitoring of the internal data environment and regular assessment of the environments of third-party service providers who manage sensitive data. In addition, UScellular security leaders conduct regular cyber incident simulations to ensure preparedness in the event of a cyber-attack and further test potential risks. Identified risks are evaluated against a risk classification framework to direct remediation, mitigation and management efforts based on severity. Cybersecurity risks are integrated into the UScellular Enterprise Risk Management (ERM) program with updates provided on a quarterly basis.The Senior Vice President of Information Technology is responsible for assessing and managing cybersecurity risks. He has over twenty years of experience at the company, encompassing network engineering, information technology and cyber security. Management has a depth of cybersecurity experience focused on increasing the organization's resilience to security threats and stays current on new developments through continuing education and monitoring of the cybersecurity landscape. As part of their accountability for incident response, significant incidents are communicated to an internal committee including the Chief Financial Officer and general counsel to assess their materiality and if materiality is confirmed it is reported by the defined process. To date UScellular has not identified nor become aware of any cybersecurity incidents that individually or in aggregate have materially affected or are reasonably likely to materially affect the company, including its business strategy, results of operations, or financial condition.The full Board of Directors engages in oversight of UScellular's cybersecurity risks. The Board of Directors receives regular updates from management on technology and security updates and UScellular’s assessment of cybersecurity threats and mitigation plans. The Senior Vice President of Information Technology provides the full