By Kari McMahon June 25, 2025 A recent open letter from JPMorgan Chase's chief information security officer, Patrick Opet, issued
Kari McMahon is a former crypto reporter at Business Insider. She specializes in covering Web3 startups and has a strong background in cryptocurrencies, blockchain technologies, and investment trends. Kari's work has been featured in prominent outlets such as Unchained, Yahoo Finance, and The Block.














