Some mobile security threats are the same types of threats computers face, and others are specific to mobile devices. Smartphones and tablets can get infected with viruses and malware just like desktops and laptops. Browser threats exist on both computers and mobile devices. Threats specific to mobile devices include scam and phishing text messages (smishing) and voice calls (vishing), as well as risks related to mobile apps. There are many types of online threats, and the way to defend against them is to use a good mobile security app on each of your mobile devices.