Malware on your phone refers to malicious software specifically designed to attack mobile devices such as smartphones and tablets. It can steal your personal information, gain unauthorized access to your device, perform malicious activities or violate your privacy. Mobile malware can slow down your phone, display unwanted ads, track your browsing habits, and steal sensitive information such as login credentials and credit card information. It is important to take precautions such as downloading apps from reliable sources and regularly updating your operating system to minimize the chances of infection.