Do Mobile phones need antivirus or internet security apps?

Answer to your question is YES!

Viruses & Malware's come from user installed apps on their mobile phone from Untrusted source app. These app seeks permission to retrieve running apps & read sensitive log data.

How  to protect your mobile from Viruses & Malware's 

Antivirus Mobile Security - Features:

1. Security Scan (Scans your mobile or tablet).

2. Privacy Settings (Lock apps, Show or hide profile, Block Calls).

3. Battery optimizer (Extend Battery, Clean Memory, Clean Storage, Track Data Usage).

4. Find Device (Locate, Lock from remote pc, Uninstall protection).

5. Track SIM (Warns, on inserting new SIM in stolen or lost device, It even shows you the new mobile number).

6. CaptureCam (See who’s got your lost device, CaptureCam takes photo of person holding your device and mails you along with location).

7. Wipe all data (Wipes your storage from lost or stolen device).

8. Backup (Stores back up and restores if your device is damaged or lost).

9. Web Security (Avoid risky Wi-Fi networks, websites and links).

10. Check your subscription status as Active- Premium (Checks subscription validity).

DO NOT INSTALL ANY FREE ANTI-VIRUS APP (OFTEN FOUND AD ON TV) ON YOUR PHONE. SUCH ANTI-VIRUS GENERATES FAKE VIRUS REPORT AND CONVINCE USER THAT HOW IT WORKS PERFECTLY AND HOW WISE YOU ARE THAT YOU CHOSE TO INSTALL THIS ANTI-VIRUS.

Do not install such apps which displays malicious ads which tells that your phone has been infected and install so and so anti-virus. Do no trust on such ads and simple do not install such apps which shows such ads.

ALWAYS INSTALL GENUINE ANTIVIRUS

Best Antivirus for your mobile phone are: 

Information Source : Wikipedia & Google

Image Source : bitdefender 

Read More : How to locate your Lost mobile with Google App