ZachXBT has publicly criticized Ledger, alleging multiple data breaches that have compromised customer privacy and led to targeted thefts amounting to millions of dollars. The critique highlights issues with Ledger's products, including battery malfunctions in the Ledger Nano X. Additionally, ZachXBT questions Ledger's intentions behind its planned IPO in the US, following the announcement of a percentage fee for clear signing, suggesting it is a move to maximize profits.