Final answer:
White-hat hackers are individuals who break into systems for non malicious reasons, such as to test security systems. They are ethical hackers who help organizations identify vulnerabilities and strengthen defenses against malicious hackers.
Step-by-step explanation:
Hackers who break into systems for non malicious reasons, such as to test security systems, are known as white-hat hackers. They are also called ethical hackers because they use their skills for good and to identify vulnerabilities in computer systems. White-hat hackers often work in cybersecurity and help organizations strengthen their defenses against malicious hackers.