Secure Systems Limited specialises in the development of secure portable self-encrypting data storage and processing technology for high assurance Government and Defence applications. Secure Systems' patented and award-winning Silicon Data Vault (SDV) products are certified by Defence Signals Directorate (DSD) under their High Assurance and High Grade cryptographic evaluation. The SDV product range is the only certified technology in Australia able to store and protect aggregated data classified as Top Secret, Secret or Protected yet allow handling as Unclassified when powered down.