WKEY WISeKey International Holdings AG

WISeKey WISeID Provides Healthcare Security with Decentralized Digital Identities

Geneva, Switzerland, March 5, 2025 –WISeKey International Holding Ltd (“WISeKey”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company, today announces that its WISeID.COM introduces a groundbreaking approach to healthcare data security by enabling decentralized consultations through blockchain-secured digital identities, encryption, and self-sovereign identity (SSI) principles. This next-generation platform ensures that patients maintain full control over their medical records, granting access only to authorized healthcare providers through consent-based permissions, eliminating third-party control and significantly reducing risks of data breaches and identity theft.

Traditional healthcare systems store patient records in centralized databases controlled by hospitals, clinics, and insurers, limiting interoperability while exposing sensitive data to cyber threats. With WISeID.COM, the healthcare industry can shift towards a decentralized, patient-centric model that enhances privacy, security, and accessibility. Patients can securely share specific medical information with healthcare professionals without exposing their entire health history, ensuring seamless telemedicine and cross-border consultations.

Advanced Security with Post-Quantum Cryptography and Zero-Knowledge Proofs

WISeID.COM integrates post-quantum cryptography and zero-knowledge proofs to safeguard medical records from emerging cyber threats. This ensures that:

• Sensitive health data remains encrypted at all times.
• Patients can selectively share medical records without disclosing unrelated health information.
• Telemedicine services and cross-border healthcare providers can securely access patient records without manual transfers or centralized intermediaries.
• Dynamic access controls enable temporary or conditional data sharing, granting permissions for a limited time or specific use cases.
• Biometric authentication ensures that only the rightful patient can access and manage their health records.

Addressing the Failures of Centralized Health Systems

Current electronic health record (EHR) systems create data silos, limiting accessibility and making it difficult for patients to share their information across different providers or jurisdictions. These systems are frequent targets for cyberattacks, often resulting in the hacking, leaking, or unauthorized sale of sensitive medical data. Worse yet, patients typically lack visibility into who accesses their information, creating a lack of trust and control over their own health records.

By leveraging blockchain-secured digital identities, WISeID.COM provides an alternative that:

• Empowers patients with full ownership and control of their health data.
• Reduces bureaucracy by enabling real-time, consent-based access to records.
• Improves healthcare trust through a transparent and tamper-proof system.
• Mitigates security risks associated with centralized storage and unauthorized access.

A New Era for Secure and Interoperable Healthcare

WISeID.COM represents a paradigm shift for the healthcare industry, bridging the gap between security, privacy, and interoperability. As healthcare increasingly moves towards digitalization, ensuring data sovereignty and patient control is crucial. WISeID.COM enables a future where health information is secure, verifiable, and instantly accessible, without compromising privacy or patient rights.

About WISeKey

WISeKey International Holding Ltd (“WISeKey”, SIX: WIHN; Nasdaq: WKEY) is a global leader in cybersecurity, digital identity, and IoT solutions platform. It operates as a Swiss-based holding company through several operational subsidiaries, each dedicated to specific aspects of its technology portfolio. The subsidiaries include (i) SEALSQ Corp (Nasdaq: LAES), which focuses on semiconductors, PKI, and post-quantum technology products, (ii) WISeKey SA which specializes in RoT and PKI solutions for secure authentication and identification in IoT, Blockchain, and AI, (iii) WISeSat AG which focuses on space technology for secure satellite communication, specifically for IoT applications, (iv) WISe.ART Corp which focuses on trusted blockchain NFTs and operates the WISe.ART marketplace for secure NFT transactions, and (v) SEALCOIN AG which focuses on decentralized physical internet with DePIN technology and house the development of the SEALCOIN platform.Each subsidiary contributes to WISeKey’s mission of securing the internet while focusing on their respective areas of research and expertise. Their technologies seamlessly integrate into the comprehensive WISeKey platform. WISeKey secures digital identity ecosystems for individuals and objects using Blockchain, AI, and IoT technologies. With over 1.6 billion microchips deployed across various IoT sectors, WISeKey plays a vital role in securing the Internet of Everything. The company’s semiconductors generate valuable Big Data that, when analyzed with AI, enable predictive equipment failure prevention. Trusted by the OISTE/WISeKey cryptographic Root of Trust, WISeKey provides secure authentication and identification for IoT, Blockchain, and AI applications. The WISeKey Root of Trust ensures the integrity of online transactions between objects and people. For more information on WISeKey’s strategic direction and its subsidiary companies, please visit www.wisekey.com.

DisclaimerThis communication expressly or implicitly contains certain forward-looking statements concerning WISeKey International Holding Ltd and its business. Such statements involve certain known and unknown risks, uncertainties and other factors, which could cause the actual results, financial condition, performance or achievements of WISeKey International Holding Ltd to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. WISeKey International Holding Ltd is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise.

This press release does not constitute an offer to sell, or a solicitation of an offer to buy, any securities, and it does not constitute an offering prospectus within the meaning of the Swiss Financial Services Act (“FinSA”), the FinSa's predecessor legislation or advertising within the meaning of the FinSA. Investors must rely on their own evaluation of WISeKey and its securities, including the merits and risks involved. Nothing contained herein is, or shall be relied on as, a promise or representation as to the future performance of WISeKey.Press and Investor Contacts

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