http://blog.nowherejezfoltodf4jiyl6r56jnzintap5vyjlia7fkirfsnfizflqd.onion/opsec/plausiblydeniabledataprotection/index.html
Therefore, to meet the deniability requirements, we have the following backup procedure: 1) open the diary Veracrypt hidden volume to save the critical data in it
2) after saving the critical data in it, close the hidden volume
3) open the diary veracrypt decoy volume to write a new diary text file in it.