Telegram can be downloaded from the Google Play Store for Android devices and the Apple App Store for iOS devices. After installation, users should set up their privacy features. Telegram offers “Secret Chats,” which use end-to-end encryption to ensure only the participants can access the messages. Additionally, users can enable “Two-Step Verification,” adding an extra layer of security by requiring both a password and an SMS code. Privacy settings in Telegram also allow users to control who can see their profile photo, last seen status, and phone number.