Some sophisticated hackers managed a BGP hijack on the servers powering KakaoTalk, a marketing and customer service application used by the South Korean KLAYswap cryptocurrency exchange. The hijacking enabled the hackers to serve malicious JavaScript that allowed hackers to intercept funds as a user initiated a transaction. Over a two-hour period, the hackers stole cryptocurrency totaling ₩2.2 million (about $1.9 million) from 325 customer wallets. The exchange acknowledged the hack the same day, and promised to compensate affected users.

Total loss estimated at $1,900,000.