Regular mobile phones to smart phones are phenomenal because massive leap in capabilities. The abundance of applications available for download and installation is one of the main selling points of smart phones. But it also means that malicious software may be readily distributed to smart phones, allowing hackers to launch a variety of attacks. Effective detection procedures and preventative measures should be taken to deal with this problem. The reasons why cell phones are susceptible to security breaches are initially covered in this article. After then, it shows signs of malicious behavior and virus threats. After that, it takes a look back at the methods currently used to identify and stop malware. It highlights the need for additional research in these areas, as well as the efforts of app developers, app store authorities, and users to protect themselves from this type of malware.