The Monero and MoneroV private keys, and by extension the XMR & XMV coins of holders, are completely safe as long as the official MoneroV wallet is being used to claim the MoneroV coins. The wallet’s source code and all other dependencies will be published and open sourced before it is released in its downloadable form.

Some best practices on safely participating in the fork:

1. Hold XMR locally as you would at the time of the snapshot.

2. Wait for the official open-source MoneroV wallet announcement.

3. Download the MoneroV wallet ONLY from the official website or Github repo.

4. Extract XMV using the official wallet anytime in the future.

NOTE: You can extract the XMV from an empty/altered wallet that had XMR at the time of the snapshot. Meaning you can send your XMR to another wallet prior to extracting XMV.