How to check if someone else is using your WhatsApp account

WhatsApp, like many other online applications, strives to keep its users' data private and secure. STEPS TO SECURELY SIGN IN TO YOUR WHATSAPP ACCOUNT: Tap the three vertical dots menu icon in the main WhatsApp window to launch a WhatsApp Web session on your tablet or phone Choose "WhatsApp Web." By tapping the three vertical dots menu icon, you can view the most recent session or any open session Choose "Linked devices." STEPS TO SECURE YOUR WHATSAPP ACCOUNT: From the main window, open WhatsApp and select the three vertical dots menu icon "Settings -> Account" should be selected Select "Two-step verification," then click "Enable." Enter a "6-digit PIN code," then press the "Next" button To authenticate your WhatsApp account, you must now enter that PIN code every time you open it.