If you have a standard Mega link (e.g., https://mega.nz/#F!abc123!XYZ ), the part after the ! is the . Without it, the file remains encrypted on Mega’s servers.
The short, honest answer is critical to understand before we proceed: How To Open A Mega Link Without Decryption Key
If you see "undecrypted folder" or "NO_KEY" errors in a shared folder, it might be due to a 2023 security update requiring mutual contact verification. If you have a standard Mega link (e
This is the most obvious but overlooked method. If you received a link without a key: How To Open A Mega Link Without Decryption Key