ARK Invest’s Lorenzo has outlined critical vulnerabilities facing self-custodians, citing Layer 2 network shutdowns with only one month's notice as a primary risk factor. The warning underscores the operational dangers inherent in current scaling solutions where short wind-down periods could trap user funds. Broader technological shifts, including AI breakthroughs and quantum computing advancements, were also identified as emerging threats to asset security. These developments highlight an evolving risk landscape for individual crypto holders managing their own keys outside of custodial platforms.