The SDoT Labelling Service is an efficient solution for creating and verifying XML-based security labels according to STANAG 4774 and 4778 for network environments for classified information. As part of data-centric security approaches, the SDoT Labelling Service fulfils the important task of generating security labels for classified data that have a strong cryptographic link to the corresponding classified data. The SDoT Labelling Service can also verify the correctness of security labels. The high-security product is developed and produced in Germany according to security-by-design principles by certified cybersecurity experts and is approved for processing classified information up to a DEU SECRET, EU SECRET and NATO SECRET. Security labels created with SDoT Labelling Service can be used to filter unstructured data at network boundaries with the SDoT Security Gateway.

The SDoT Labelling Service is delivered as appliance with TEMPEST approval as NATO equipment Zone 1 or 2.

SDoT Labelling Service requires a public key infrastructure (PKI) compliant with the requirements for the protection of NATO SECRET. INFODAS GmbH offers an additional product "SDoT Certificiate Authority Center" to provide such a PKI.