From Sept. 18, 2023 to Sept. 28, 2023, Ribbon finance engaged Veridise to review the security of their Aevo Exchange. Aevo is a high-performance, order-book based decentralized exchange that allows trading in perpetuals, options and spot trades. Veridise conducted the assessment over 16 person-days, with 2 engineers reviewing code over 8 days. The auditing strategy involved a tool-assisted analysis of the source code performed by Veridise engineers as well as extensive manual auditing.