n the ODISSEI Secure Supercomputer (OSSC), researchers can perform analyses of highly-sensitive data – such as CBS Microdata – in SURF’s high performance computing environment Snellius. The ODISSEI Secure Supercomputer (OSSC) consists of an enclave of Statistics Netherlands within the domain of SURF. This virtual IT environment offers a high performance computing environment that meets the requirements of Statistics Netherlands in legal, technical and security requirements.