BBC’s account of the 2016 Bangladesh Bank heist describes investigators attributing a nearly $1 billion fraudulent-transfer attempt to North Korean operators known as Lazarus Group. The attackers had reportedly been inside Bangladesh Bank’s systems for about a year before issuing transfer instructions through the bank’s Federal Reserve account, with a malfunctioning transaction printer helping reveal the intrusion. Most transfers were stopped by timing and scrutiny, but $81 million was successfully stolen through fake accounts, charities, casinos, and accomplices. The article also cites FBI attribution and charges against Park Jin-hyok, linking the operation to North Korea’s broader state-backed cyber capability.