Stealth co-founder Rafail Ostrovsky (UCLA) and Stealth consultant Brett Hemenway Falk (University of Pennsylvania), in collaboration with Daniel Noble (University of Pennsylvania), published a paper “Alibi: A Flaw in Cuckoo-Hashing Based Hierarchical ORAM Schemes and a Solution” at the 40th Annual International Conference on the Theory and Applications of Cryptographic Techniques (EUROCRYPT 2021).