Jamie Dimon, CEO of the largest US bank, JPMorgan Chase & Co, said on Monday at a conference that cryptocurrencies will be regulated by governments and that he personally thinks bitcoin is “worthless”.

“No matter what anyone thinks about it, government is going to regulate it. They are going to regulate it for (anti-money laundering) purposes, for (Bank Secrecy Act) purposes, for tax,” Dimon said, referring to banking regulations in a conversation held virtually by the Institute of International Finance.

Dimon has been a vocal critic of the digital currency, once calling it a fraud and then later saying he regretted the statement.

Earlier this year, JPMorgan gave wealth management clients access to cryptocurrency funds, meaning the bank’s financial advisers can accept buy and sell orders from clients for five cryptocurrency products.

Stating that his views are different from those of the bank and its board, Dimon said he remains sceptical. “I personally think that bitcoin is worthless,” Dimon said. “I don’t think you should smoke cigarettes either.”

“Our clients are adults. They disagree. If they want to have access to buy or sell bitcoin — we can’t custody it, but we can give them legitimate, as clean as possible access.”