Prof. Dr. Šarūnas Grigaliūnas
I know what a single point of failure can cost. I build post-quantum security, AI governance and cyber resilience for systems that cannot afford to fail.
This is not a story about fragility. It is a record of what becomes possible when lived vulnerability is turned into strategic clarity.
* The source code
In 1998, my body told me to stop.
Since that day, vulnerability has never been an abstract concept. It has been a daily operating condition—something to understand, work with and refuse to surrender to.
I do not use that history as a request for sympathy. I use it as a source of rigor. It taught me that resilience is not the absence of weakness. It is the ability to keep identity, purpose and essential functions intact when weakness is real.
That is why I work where post-quantum security, AI governance and critical infrastructure meet. Not because these subjects are fashionable, but because I know how easily one unprotected dependency can bring down everything around it.
;; operating principleFind the point the system cannot afford to lose. Then design so it does not have to.
Last login now — resilience console
sarunas@resilience:~$ ./profile --all
[1998] vulnerability became lived experience.
[1999] cybersecurity became a field of work.
[today] professor, centre head, researcher and builder.
[focus] post-quantum security · AI governance · forensics · resilience.
[method] translate frontier risk into systems people can use.
[mission] make Lithuania and the Baltic region harder to break.
[status] still building_
sarunas@resilience:~$
Vulnerability stops being theory.
Cybersecurity becomes a professional path.
Research, infrastructure, governance and public education converge.
A quantum-safe, AI-ready and resilient Baltic region.
* Four connected domains
I turn emerging risk into migration plans, governance models, evidence practices and infrastructure that can survive contact with reality.
Preparing institutions for cryptographic transition, long-term confidentiality risk and interoperable quantum-secure communication.
Making accountability, decision rights and operational safeguards explicit before AI becomes an unmanaged dependency.
Helping critical sectors preserve trust and continuity before, during and after digital disruption.
Connecting technical evidence, investigation logic and defensible decisions across complex incidents.
* Modules I teach
I teach these modules in the second-cycle programme Information and Information Technology Security at the Faculty of Informatics, KTU. Each one is 6 ECTS. The KTU researcher profile lists them for 2022–2026.
T120M1446 ECTS
Information and Information Technology Security
Knowledge of virtual architectures and their security technologies, and skills to manage virtual environments and apply virtual-infrastructure security tools.
Official module pageT120M1526 ECTS
Information and Information Technology Security
Knowledge of cybercrime and its identification, analysis and investigation with modern digital forensics, and of incident investigation that preserves digital evidence.
Official module pageT120M1546 ECTS
Information and Information Technology Security
Knowledge and skills for assessing information systems and networks with ethical hacking and security testing, within legal and ethical limits.
Official module page* Work in motion
Institutional programmes, independent laboratories, community work and products—grouped by the outcome they are designed to create.
Operational trust
Research, education and practical solutions for a safer, more inclusive digital society.
Head of Centre ↗Fostering online resilience through technology, research, education and security solutions.
Project head ↗Information security and AI governance standard for accountable adoption.
Visit project ↗Trust beyond classical cryptography
A cross-border quantum communication backbone connecting Latvia and Lithuania.
KTU project head ↗Connecting terrestrial quantum infrastructure with the European satellite segment.
KTU project head ↗Lithuania's role in European quantum communication, made visible and usable.
Explore the map ↗Technology in service of people
A community-built accessibility map that grew from 54 personally verified places to more than 170,000 entries across roughly 50 countries.
A compact electric wheelchair attachment created to overcome cobblestones, inclines and the front-wheel failure point of a manual chair.
Volunteer leadership for information security, audit and professional development.
Chapter president ↗Board member of the Lithuanian Quantum Technologies Association, connecting research, industry and national capability.
Board announcement ↗Expert contribution to national committees for information security and quantum technologies.
Ideas that become usable products
IT governance and security documentation for organisations that need defensible structure.
Visit venture ↗A focused macOS utility for inspecting and changing file timestamps.
Open application ↗An AI quota and usage dashboard designed for clarity on iPhone.
View product ↗* Evidence over adjectives
The profile is anchored in current institutional roles, programmes and public research records—not generic claims of expertise.
Faculty of Informatics
Open source ↗ verified / KTU Head of CentreKTU Cyber Security Centre of Excellence
Open source ↗Faculty of Informatics, Department of Computer Sciences
Open source ↗ verified / KTU Chief Project Researcher, SV3260001Cyber Security Centre of Excellence
Open source ↗ verified / KTU Chief Project Researcher, SV3260002Cyber Security Centre of Excellence
Open source ↗ verified / KTU Project head · 2026–2028Lat–LitQN cross-border quantum infrastructure
Open source ↗ verified / KTU Project head · 2026–2029PIONIER-Q-SAT EuroQCI space segment
Open source ↗ verified / ISACA Chapter PresidentISACA Lithuania professional community
Open source ↗ verified / KTU GreenTech HorizonsCarried out, 2024–2027. Fostering dual green and digital transitions through education and innovation in the Neighbourhood East, Central Asia, and Asia.
Open source ↗The consistent public argument is simple. Quantum security is not a distant research problem. Cryptographic visibility, identity and interoperability are resilience questions for today.
Outdated cryptography as a national trust problem ↗ Quantum-secure identity for the Baltic region ↗* Selected primary works
Selected primary works, linked by DOI. Citation counts stay on the profiles.
* Public record
Interviews, talks and news, newest first.
* Make the complex actionable
I work with executive, technical, academic and public-sector audiences to translate emerging cybersecurity into clear priorities and defensible action.
PQC, QKD, crypto-agility and quantum-safe identity—what must move now.
Accountability and resilience before AI becomes an uncontrolled dependency.
Long-term confidentiality risk translated for executive decisions.
Evidence, OSINT and investigation when authenticity is under pressure.
Moving from compliance to operational readiness and continuity.
* The next resilient system starts with a conversation
If the answer involves trust, identity, continuity or evidence, we should talk.