South Korean cryptocurrency exchange GDAC fell victim to a hacking attack on April 9, resulting in a loss of nearly $13 million worth of digital assets. The company confirmed the incident on Monday and revealed that the hackers had stolen 23% of its total assets. According to reports, the attackers managed to transfer around $15 million worth of cryptocurrencies, including 60.8 Bitcoins, 350.50 Ethereum, 10 million Wemix, and 220,000 Tether, to an unknown wallet. GDAC…