### This show how to extract OTP secret from Google Authenticator

1. Export your account from Authenticator app then use other phone to scan the QR code displayed
2. Your text from QR code has form of: `otpauth-migration://offline?data=thisIsSomeDataInBase64AndUrlEncoded%2B%3D`
3. Convert the data (all after `otpauth-migration://offline?data=`) to base64 by F12 in Chrome/Edge, in Developer console enter the following: `decodeURIComponent('thisIsSomeDataInBase64AndUrlEncoded%2B%3D')`
![image](https://user-images.githubusercontent.com/2195141/242667845-69242e78-e4e4-42ee-8f2c-62bb1991c11a.png)
4. Copy the result string (without quotes) to https://protobuf-decoder.netlify.app/ you will get
![image](https://user-images.githubusercontent.com/2195141/242668882-b2465696-b5a9-427f-9702-fb0756f552fe.png)
5. Notice content at Byte range 0-12 is your secret key, copy that string `23 f8 58 9a 0d a6 93 f1 22 ec` to https://cryptii.com/pipes/hex-to-base32
![image](https://user-images.githubusercontent.com/2195141/242669841-bbeef5af-0aed-4c19-b231-97de021bb20f.png)
6. Now `EP4FRGQNU2J7CIXM` is your secret key for that account