Jinse Finance; Bit; TRON; Dai; BTC; ETH; HT; AR; RON; ONG; Bybit The article discusses a major security breach at the famous cryptocurrency exchange Bybit in February 2025, resulting in the loss of nearly $1.5 billion worth of Ethereum (ETH). This incident is the largest theft in the history of cryptocurrency. Fortunately, Bybit is actively collaborating with industry experts like Chainalysis to track the stolen assets. They have also launched a bounty program to reward individuals who assist in the recovery of the stolen cryptocurrencies. The article delves into the details of the vulnerability, the tactics, techniques, and procedures (TTPs) used by the attackers, and their connection to the Democratic People's Republic of Korea (DPRK). It also explores how Chainalysis is working with Bybit and law enforcement agencies to help recover the funds. The article highlights the common tactics employed by DPRK-linked hackers, such as planning social engineering attacks and using complex money laundering methods to move the stolen funds without detection. The funds from the Bybit breach have also been integrated into addresses known to hold funds from other DPRK-related attacks, further confirming the involvement of a nation-state actor. The article provides a step-by-step analysis of how the Bybit vulnerability unfolded, including the initial compromise through social engineering, the unauthorized transfers, the asset dispersal through intermediary wallets, the conversion and money laundering, and the strategic holding of a significant portion of the stolen funds. The article emphasizes the importance of collaboration within the crypto ecosystem to combat these threats. Bybit's swift response, including guaranteeing customer reimbursement and partnering with blockchain forensics experts, demonstrates the industry's commitment to mutual support and resilience. By pooling resources and intelligence, the crypto community can strengthen its defenses against such complex network attacks and work towards a safer digital financial environment.