Yes, a hacker can potentially steal money from a bank account if they manage to gain unauthorized access to your online banking credentials, compromise your personal security information, or exploit software vulnerabilities. Cybercriminals commonly employ phishing emails, malware, keyloggers, and social engineering tactics to intercept passwords or multi-factor authentication codes. However, modern financial institutions utilize robust encryption, advanced fraud detection algorithms, and multi-layered security controls to minimize these risks. Furthermore, federal regulations and bank policies often protect consumers from unauthorized electronic fund transfers, provided fraudulent activity is reported promptly.