Bip39 or slip39 https://unsplash.com/@morganvmyg Let us presume it will be 10x speedier compared to GFX card higher than so around 2,4M hashes/s. A normal attacker will own a number of these specialised gadgets. For words that have only three letters, there is absolutely no 4th letter. For instance Using the https://bookmarklinx.com/story20695232/bip39-light-standard-the-greatest-guide-to-bip39-https-t-me-bip39-chat