Nova exchange came into the crypto market in the year 2016, as a centralized exchange. This exchange was founded in Sweden. This exchange went off as off the time I wanted to use the exchange. The exchange went off and announced publicly on telegram that it will go off, which was since 2020. This exchange mode if security is not strong, I came to realize that the exchange was hacked sometime ago, I advice the exchange if coming back should come with a better method of storing users funds. It is better for the exchange to use a cold wallet system. Please the exchange should not stay too long on their repair, to avoid people running away from them, and to tarnish their image.