A seed should always remain secret, it constitutes the proof that you own your funds. Never share it to anyone. Never keep it unencrypted on your computer or in a notepad app.
A mnemonic is a way to remember your seed with simple words from the BIP39 list. The seed below is encrypted with basic ciphers, can it be considered safu?
| 1 | plunge | begin | (hint: identity function) | 
|---|---|---|---|
| 2 | soy | tusk | (hunt: samething it wpong) | 
| 3 | bmuht | siht | (hint: esrever) | 
| 4 | fasion | tile | (hint: soething i missng) | 
| 5 | 464 | 1999 | (hint: can you count?) | 
| 6 | vacances | typique | (hint: buvez de l'eau) | 
| 7 | vwdps | wrs | (hint: ave caesar) | 
| 8 | 70 68 70 65 68 75 | 6c 71 70 64 77 68 | (hint: use 16 fingers ) | 
| 9 | 01100100 01111010 01100100 01110101 01101000 | 01101010 01101111 01110010 01111001 01101000 | (hint: count with two fingers) | 
| 10 | anVuZ2xl | cGlnZW9u | (hint: count with two people teeth) | 
| 11 | lead ref | sly mob | (hint: an a gram) | 
| 12 | (hint: go back to the source and guess) |