WhatsApp is a popular messaging application that allows users to send text messages, voice messages, images, videos, documents, and make voice and video calls over the internet. Acquired by Facebook in 2014, WhatsApp boasts end-to-end encryption, ensuring privacy and security for its users. With features like group chats, status updates, and the ability to share location, WhatsApp has become a ubiquitous communication tool used by billions of people worldwide across various devices, including smartphones and desktop computers.