A bank heist is a crime where individuals illegally enter a bank with the intent to steal money or valuables. These robberies can involve various methods, such as armed robbery, where thieves use weapons to intimidate bank staff and customers, or more sophisticated techniques like hacking into security systems. The goal is to access cash, jewelry, or other assets stored within the bank. Law enforcement agencies, such as the FBI in the United States, often investigate bank heists. They use surveillance footage, witness testimonies, and forensic evidence to identify and apprehend the criminals involved. Successful heists can lead to significant financial losses for banks and increased security measures in the future.