I've had an S6, S9+, S10 and now a Note 10+, and I have never had Malware on my device. I flashed the (N975U1) Unlocked firmware on the previously verizon-branded device with ODIN, then PM Uninstalled about 175 Google, Samsung, and other waste-of-space apps with ADB. The only way your gonna get "Malware" is if you download something you shouldn't have. Use caution when downloading everything, and configure your device judiciously. Go into Settings and make certain no app can download an Unknown App, delete or uninstall all unecessary apps, and go through your System, and User-installed apps, and remove all but mandatory permissions. This process has always worked for me, and I have never had Malware on any of my devices going back to my first S6.
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