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EFF's Secure Messaging Scorecard currently rates "Telegram (secret chats)" with a 100% security rating. However, the software of the servers Telegram uses is not open; cf. the FAQ "Why not open source everything?"

WhatsApp was docked on the "Is the code open to independent review?" metric. Telegram is now completely open; source code here. Being open, you can verify for yourself that there is no back-doors which could possibly be in a closed app. WhatsApp is closed-source now that it's gone proprietary (Facebook bought it).

^{A good alternative is Tox or Signal, which is open and peer-to-peer / end-to-end encrypted only and received a high EFF rating.}

EFF's Secure Messaging Scorecard currently rates "Telegram (secret chats)" with a 100% security rating. However, the software of the servers Telegram uses is not open; cf. the FAQ "Why not open source everything?"

WhatsApp was docked on the "Is the code open to independent review?" metric. Telegram is now completely open; source code here. Being open, you can verify for yourself that there is no back-doors which could possibly be in a closed app. WhatsApp is closed-source now that it's gone proprietary (Facebook bought it).

^{A good alternative is Tox or Signal, which is open and peer-to-peer / end-to-end encrypted only and received a high EFF rating.}

EFF's Secure Messaging Scorecard currently rates "Telegram (secret chats)" with a 100% security rating. However, the software of the servers Telegram uses is not open; cf. the FAQ "Why not open source everything?"

WhatsApp was docked on the "Is the code open to independent review?" metric. Telegram is now completely open; source code here. Being open, you can verify for yourself that there is no back-doors which could possibly be in a closed app. WhatsApp is closed-source now that it's gone proprietary (Facebook bought it).

^{A good alternative is Tox or Signal, which is open and peer-to-peer / end-to-end encrypted only and received a high EFF rating.}

EFF's Secure Messaging Scorecard currently rates "Telegram (secret chats)" with a 100% security rating. However, the software of the servers Telegram uses is not open; cf. the FAQ "Why not open source everything?"

WhatsApp was docked on the "Is the code open to independent review?" metric. Telegram is now completely open; source code here. Being open, you can verify for yourself that there is no back-doors which could possibly be in a closed app. WhatsApp is closed-source now that it's gone proprietary (Facebook bought it).

^{A good alternative is Tox or Signal, which is open and peer-to-peer / end-to-end encrypted only and received a high EFF rating.}

EFF's Secure Messaging Scorecard currently rates "Telegram (secret chats)" with a 100% security rating.

WhatsApp was docked on the "Is the code open to independent review?" metric. Telegram is now completely open; source code here. Being open, you can verify for yourself that there is no back-doors which could possibly be in a closed app. WhatsApp is closed-source now that it's gone proprietary (Facebook bought it).

^{A good alternative is Tox or Signal, which is open and peer-to-peer / end-to-end encrypted only and received a high EFF rating.}

EFF's Secure Messaging Scorecard currently rates "Telegram (secret chats)" with a 100% security rating. However, the software of the servers Telegram uses is not open; cf. the FAQ "Why not open source everything?"

WhatsApp was docked on the "Is the code open to independent review?" metric. Telegram is now completely open; source code here. Being open, you can verify for yourself that there is no back-doors which could possibly be in a closed app. WhatsApp is closed-source now that it's gone proprietary (Facebook bought it).

^{A good alternative is Tox or Signal, which is open and peer-to-peer / end-to-end encrypted only and received a high EFF rating.}