WhatsApp’s Chat Lock feature enhances privacy by allowing users to secure specific chats with authentication methods like PIN, password, fingerprint, or Face ID. This step-by-step guide walks you through locking and unlocking chats on both Android and iOS devices. Locked chats are stored in a separate folder, hidden from the main chat list, with notifications also c…WhatsApp’s Chat Lock feature enhances privacy by allowing users to secure specific chats with authentication methods like PIN, password, fingerprint, or Face ID. This step-by-step guide walks you through locking and unlocking chats on both Android and iOS devices. Locked chats are stored in a separate folder, hidden from the main chat list, with notifications also c…