OUR TEAM
SEALED is run by its two founding partners, who have worked together on digital identity and trust services since the creation of Belgacom’s E-Trust services. Both are frequent speakers at conferences in Europe and beyond, have published widely on electronic signatures, identity and trust services, and combine technical depth with solid experience of the legal and regulatory aspects and of standardisation.
SYLVIE LACROIX
Sylvie Lacroix, CISA (Certified Information Systems Auditor), Managing Partner of SEALED, is an information security consultant with 30+ years of experience in digital identity, trust services and cryptography. With a Master from the École Polytechnique de Louvain, she started her career as a researcher in cryptography at UCLouvain. She then played a key role in creating the first qualified certification service provider recognised in Belgium, before co-founding SEALED.
She has acquired significant experience in security governance, risk management and PKI through major projects in Europe and beyond, such as national eID card and ePassport deployments, licensing and supervision schemes for trust services, and the integration of eSignature and other trust services in diverse ecosystems.
Sylvie is the European Commission’s security expert for the once-only technical system (OOTS) of the Single Digital Gateway, where she focuses on IT security risk management and trust models. She was previously an expert for the Commission on the eIDAS Regulation and its 2024 revision. She currently works for governments in several regions of the world and for large enterprises, and contributes to standardisation at CEN and ETSI, where she has led several ETSI Special Task Forces on trust services and identity proofing standards. She has also worked for EU institutions and agencies such as ENISA.
OLIVIER DELOS
Olivier Delos, CISSP (Certified Information Systems Security Professional), CISA (Certified Information Systems Auditor), Managing Partner of SEALED, is an information security consultant with 30+ years of experience in PKI, trust services, electronic signatures and digital identity. With a Master in Computer Science Engineering from the École Polytechnique de Louvain, he started his career as a researcher in cryptography at UCLouvain, as a founding member of the UCL Crypto Group. He then played a key role in creating the first qualified certification service provider recognised in Belgium, where he chaired the policy approval authority of its PKI, and sponsored the set-up of the Belgian electronic identity card, before co-founding SEALED.
He has acquired significant experience in policies and practices for trust service providers, conformity assessment and supervision, electronic signatures and Trusted Lists through major projects in Europe and beyond, such as national PKIs for identity cards and passports, and governance and supervision schemes for trust services.
Olivier supports the European Commission on the eIDAS Regulation, its implementation and its 2024 revision. He works for governments in several regions of the world and for large enterprises, and has contributed to standardisation at ETSI, where he led Special Task Forces on the rationalised framework for electronic signature standards and edited key specifications, including those on Trusted Lists and signature policies. He has also worked for EU institutions and agencies such as ENISA.