Wu Shuo learned that, according to Aave Labs' announcement, the Aave V4 protocol has completed a comprehensive security review lasting approximately 345 days, with a total investment of about $1.5 million. The official statement says that the project adopts a "security-first" strategy, implementing multi-layer security controls from the architecture design stage; the review scope includes manual audits, formal verification, invariant testing, fuzz testing, and a six-week public security competition that attracted over 900 participants submitting more than 950 reports.