User interface is the answer
A reputable website would be one that you could research online and read about it's history , reviews etc .
Answer:
To avoid receiving malware-infected files like spam.
Explanation:
Hackers use malware to gain unauthorized access to company files and information for personal gain. Files infected by the malware can infect other systems or files. There are various types of malware namely; virus, trojan horse, worm, spyware, ransomware, adware etc.