Telegram for macOS app version 7.3 stores local passcodes.
However, the issue was not solved even in the7.4 versionthat is released on 29 January.
Telegram app conversations are not end-to-end encrypted by default until the users unlock the feature called Secret Chat.
This feature keeps the data encrypted on Telegram servers also.
The security researcher discovered the flaw in the secret chat feature.
The media file stays in the local storage folder even after getting deleted automatically from the chat window.
Mishra found out that the app for macOS version 7.3 is storing local passcodes that the user has set.
And this means any user can find your passcode and get access to your chats.
In January, Telegram got 500 million monthly active users, as Whatsapp brought a privacy policy update.
Because of this update, many users have switched to Telegram and Signal.
