A "white hat" refers to an ethical hacker who uses their skills to improve security systems. Unlike malicious hackers, white hats work with organizations to identify vulnerabilities and protect sensitive information. They often conduct penetration testing and security assessments to help companies strengthen their defenses against cyber threats. White hats may also be involved in developing security protocols and educating employees about safe online practices. Their work is crucial in the fight against cybercrime, as they aim to create a safer digital environment for everyone, including individuals and businesses alike.