South Korean cryptocurrency exchange Upbit has delisted the altcoin Linear Finance (LINA) due to concerns over the stability of the token and the security of the Linear Finance protocol. Upbit users who hold LINA will have until October 31, 2023 to withdraw their tokens from the exchange, after which date LINA will no longer be supported by Upbit. This is the latest in a series of moves by South Korean cryptocurrency exchanges to delist altcoins, citing upcoming regulatory changes as the reason. The delisting of altcoins by South Korean exchanges has been controversial, with some investors criticizing the exchanges for delisting tokens without warning, while others supporting the move as necessary to protect investors.