WhatsApp as a service will never contact you through a WhatsApp message. Never trust any message that claims to come from WhatsApp and demands payment for the service.
Some scams claim that they can connect your PC with WhatsApp. Do not believe, as this is not possible.
Keep automatic downloads ‘disabled’ to keep a check on what is being downloaded.
Avoid using WhatsApp when you are connected to an open Wi-Fi network. These are hunting grounds for ‘Malware Authors and Data Sniffers.’
Always keep an updated antivirus security solution installed and updated on your mobile device.
It is advisable to set privacy settings for ‘last seen’, ‘profile photo’ and ‘status’ options to ‘my contacts’.
Be aware of what you are forwarding. It might land you in trouble.
Never send private information like bank account details, pin or passwords through WhatsApp.
Never accept files or begin downloads from messages sent to you by strangers or unknown numbers.
Never respond to suspicious messages that come through unknown numbers.