← Back to PeopleExecutiveCharles GuillemetChief Security Officer at LedgerLinkedIn@P3b7_Charles joined Ledger in 2017 as Chief Security Officer after working for 10 years in security.1Mentions1Articles1OutletsCompanies CoveredBoltz1ArticlesMost recent firstMentioned InReferenced in coverageAI vulnerability scanning triggers indefinite shutdown of Bitcoin bridgeDecryptcautiousAug 5, 2026“Ledger CTO warned that AI allows attackers to scan code and uncover vulnerabilities at machine speed.”