Personal data has real monetary value on the black market, collected and sold by data brokers and cybercriminals.Your phone number and address can be weaponized for identity theft, making regulations like GDPR, CCPA, and NDPR important.Hackers use stolen data for phishing, social engineering, credential stuffing, medical fraud, and synthetic identity theft.To protect your data, check for leaks, enable 2FA, use password managers, limit personal info online, and stay informed about privacy laws.