On September 27th, 2019 INNOV-ACTS presented the paper titled: “Blockchain based Sharing of Security Information for Critical Infrastructures of the Finance Sector” at the FINSEC Workshop of the ESORICS 2019 Conference. The paper illustrates the benefits of decentralized sharing of security data across financial organizations, while presenting a relevant prototype implementation that was carried out in the scope of the FINSEC project. The paper is joint work with other FINSEC partners, but with our company in a leading role in financial (security) data modelling and blockchain infrastructure design and implementation.