Day One Biopharmaceuticals, Inc. 10-K Cybersecurity GRC - 2026-02-24

Page last updated on February 24, 2026

Day One Biopharmaceuticals, Inc. reported their cybersecurity risk management and governance process in a yearly 10-K filed on 2026-02-24 16:06:03 EST.

Filings

10-K filed on 2026-02-24

Day One Biopharmaceuticals, Inc. filed a 10-K at 2026-02-24 16:06:03 EST
Accession Number: 0001193125-26-066956

Note: filing items unformatted. Drop us a note with the above URL to help us prioritize formatting it!

Item 1C. Cybersecurity.

Item 1C. Cybersecurity. The Company's leadership, including the board of directors, or the Board, recognizes the critical importance of maintaining the trust and confidence of our patients, investors, business partners and employees. The Board is actively involved in oversight of the Company's risk management program, and cybersecurity represents an important component of the Company's overall approach to risk management. The Company's cybersecurity policies, standards, processes and practices are integrated into the Company's broader risk management and disclosure controls and procedures and are based on recognized frameworks such as the National Institute of Standards and Technology, or NIST, Cybersecurity Framework, the International Organization for Standardization, or ISO/ International Electrotechnical Commission, or IEC 27001 framework and other applicable industry standards. In general, the Company seeks to address cybersecurity risks through a comprehensive, cross-functional approach that is focused on preserving the confidentiality, integrity and availability of the information that the Company collects and stores by identifying, preventing, mitigating and remediating cybersecurity threats and effectively responding to cybersecurity incidents when they occur. Risk Management and Strategy As one of the critical elements of the Company's overall risk management approach, the Company's cybersecurity program is focused on the following key areas: Governance : As discussed in more detail under the heading "Governance," below, the Board's oversight of cybersecurity risk management is supported by the Audit Committee of the Board, or the Audit Committee, which regularly interacts with the Company's Vice President of Information Technology and other members of management, including members of management's Data Privacy and Security Committee. Collaborative Approach : The Company has implemented a comprehensive, cross-functional approach to identifying, preventing and mitigating cybersecurity threats and incidents, while also implementing controls and processes that provide for the prompt escalation of certain cybersecurity incidents so that decisions regarding the public disclosure and reporting of such incidents can be made by management in a timely manner and in accordance with applicable legal requirements, including SEC disclosure requirements. Information Security : We implement organizational, administrative and technical measures based on commercially reasonable procedures using (i) industry standard information security measures prescribed for use by NIST, (ii) security measures aligned with the ISO/IEC 27000 series of standards, (iii) vendor security due diligence 107 and assurance activities (e.g., SOC 2 reports), (iv) applicable privacy regulations, (v) business continuity management measures aligned with the ISO/IEC 22301 standard and (vi) other generally recognized industry standards, in each case, designed to safeguard the confidentiality, integrity, and availability of our infrastructure and data and the resiliency of our operations. Technical Safeguards : The Company deploys technical safeguards that are designed to protect the Company's information systems from cybersecurity threats, including firewalls, intrusion prevention and detection systems, anti-malware functionality and access controls, multi-factor authentication, endpoint detection and response, encryption of data at rest and in transit, and security logging and monitoring, which are evaluated and improved through vulnerability assessments and cybersecurity threat intelligence. Incident Response and Recovery Planning : The Company has established and maintains comprehensive incident response and recovery plans that are designed to address the Company's response to a cybersecurity incident, including materiality assessment and disclosure escalation procedures, and such plans are tested and evaluated on a regular basis. Third-Party Risk Management : The Company maintains a comprehensive, risk-based approach to identifying and overseeing cybersecurity risks presented by third parties , including CROs, CMOs, vendors, contractors, consultants, service providers and other external users of the Company's systems, as well as the systems of third parties that could adversely impact our business in the event of a cybersecurity incident affecting those third-party systems which includes due diligence, ongoing monitoring, and contractual requirements addressing security, audit rights, and incident notification. Education and Awareness : The Company provides regular, mandatory training for personnel and contractors regarding cybersecurity threats as a means to equip the Company's personnel with effective tools to address cybersecurity threats, and to communicate the Company's evolving information security policies, standards, processes and practices. Risk and Readiness Assessments : The Company engages in the periodic assessment and testing of the Company's policies, standards, processes and practices that are designed to address cybersecurity threats and incidents. These efforts include a wide range of activities, including audits, assessments, tabletop exercises, threat modeling, vulnerability testing, independent penetration testing and other exercises focused on evaluating the effectiveness of our cybersecurity measures and planning. The Company regularly engages third parties to perform assessments on our cybersecurity measures, including information security maturity assessments, audits and independent reviews of our information security control environment and operating effectiveness. The results of such assessments, audits and reviews are reported to the Audit Committee and the Board, and the Company adjusts its cybersecurity policies, standards, processes and practices as necessary based on the information provided by these assessments, audits and reviews. Insurance : We maintain cybersecurity insurance coverage subject to customary terms, conditions and limitations. Governance The Board, in coordination with the Audit Committee, oversees the Company's risk management process, including the management of risks arising from cybersecurity threats. The Board and the Audit Committee each receive regular presentations and reports on cybersecurity risks, which address a wide range of topics including recent developments, evolving standards, vulnerability assessments, third-party and independent reviews, the threat environment, technological trends and information security considerations arising with respect to the Company's peers and third parties. The Board and the Audit Committee also receive prompt and timely information regarding any cybersecurity incident that meets established reporting thresholds, as well as ongoing updates regarding any such incident until it has been addressed. On an annual basis, the Board and the Audit Committee discuss the Company's approach to cybersecurity risk management with members of the Data Privacy and Security Committee, which includes the Company's Vice President of Information Technology. The Vice President of Information Technology, who is responsible for assessing and managing material risks from cybersecurity threats, in coordination with the Data Privacy and Security Committee, which includes our Chief Executive Officer, or CEO, Chief Operating and Financial Officer, or COO and CFO, and General Counsel , works collaboratively across the Company to implement a program designed to protect the Company's information systems from cybersecurity threats and to promptly respond to any cybersecurity incidents in accordance with the 108 Company's incident response and recovery plans . To facilitate the success of the Company's cybersecurity risk management program, multidisciplinary teams throughout the Company are deployed to address cybersecurity threats and to respond to cybersecurity incidents. Through ongoing communications with these teams, the Vice President of Information Technology and the Data Privacy and Security Committee monitor the prevention, detection, mitigation and remediation of cybersecurity threats and incidents on an ongoing basis and report such threats and incidents to the Audit Committee when appropriate. The Vice President of Information Technology has over 20 years of experience in information technology and information security, including senior leadership roles at public companies overseeing enterprise security and IT risk programs. The Company's CEO, COO and CFO, and General Counsel have extensive experience overseeing risk management at the Company and at similar companies, including risks arising from cybersecurity threats. We have not identified cybersecurity threats , including from prior incidents, that have materially affected or are reasonably likely to materially affect us, including our operations, business strategy, results of operations, or financial condition. If we were to experience a material cybersecurity incident in the future, such incidents may have a material effect, including on our operations, business strategy, results of operations or financial condition. For more information regarding cybersecurity risks that we face and potential impacts on our business related thereto, see the risk factor titled "If our security measures are compromised, or our information technology systems or those of our CROs, CMOs, vendors, contractors, consultants or other third-party partners fail or suffer security breaches, cyber-attacks, loss or leakage of data or other disruptions, this could result in a material disruption of our development programs, compromise sensitive information related to our business or other personal information or prevent us from accessing critical information, potentially exposing us to liability, harm our reputation or otherwise adversely affecting our business." 109

Company Information