Hi, it's me again. You just lied (again). To illustrate the depth of your idiocy, consider the security of the world's most popular closed source desktop OS and compare it to the security of the world's most popular open source desktop OS (UNIX/Linux).
You see, open source has nothing to do with how secure an OS is. Remember the first rule of information security: No system is safe. If someone sets their mind to cracking something open and has the skills needed, they will most likely succeed. Popularity is the metric to keep an eye on; the more popular the OS, the more people will try to break into it. Some of them will succeed.
I remember a saying I heard somewhere - the only place you'll find Android malware is on antivirus provider sites and WP sites
Android is safe if you stick to the Play Store, avoid sideloading APKs and avoid rooting.