Investor Presentaiton

Information Security GRI 418-1, SASB: HC-DY-230a.2, SASB: HC-DY-230a.3, SASB: HC-DY-230a.4 OUR OPERATION Information systems are crucial for the operation of several critical areas at Rede D'Or São Luiz. We collect and store proprietary trade information in our systems and have access to classified information and personal data in some of our businesses. Since 2020, we have relied on an independent structure responsible for information security and privacy and we have increased our participation in national and international cooperation groups to identify and fight cyber threats. In 2021, we invested R$18.13 million to enhance our information security initiatives in the entire Company. At the same time, we have a strong commitment to bring more technology and automation to our hospitals. Currently, 100% of Rede D'Or São Luiz's hospitals in Rio de Janeiro already have electronic patient charts, providing more security and agility in patient care. Among our main projects, we emphasize Accenture's Security Operation Center (SOC), which offers a broad experience in responding to security incidents across the globe and uses global trends to respond to incidents, consolidated security and cyber standards and frameworks in its modus operandi, in addition to the use of cutting-edge technological solutions to detect threats (overall focused specifically on the health care segment), solution for vulnerability management, strict access management and a campaign to raise internal stakeholders' awareness, focused on promoting a safe behavior both in their personal and professional lives. 2020 No record of incident that could compromise client data We have also kept several procedures to comply with the Brazilian General Data Protection Act, making the Data Holders Portal available so that information owners can exercise their rights under the law. No incident that could compromise any client data has been recorded in 2021. 2021 No record of incident that could compromise client data W 59 REDE D'OR SÃO LUIZ | Annual Sustainability Report 2021 60

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