Vanity Address
Personalized crypto address with desired prefix — 1Bitcoin..., 0xDEAD...
A vanity address is a crypto address containing a desired string at the beginning (or end) — for example, 1Bitcoin... or 0xDEAD...
How it's created:
•Generating a huge number of keys/addresses
•Checking each address: does it start with the desired string?
•No shortcut — brute force, but safe because a valid private key is created
How long it takes:
•Address starts with "1" → instant (every address)
•Address starts with "1ABC" → ~minutes
•Address starts with "1ABCDEF" → ~days or weeks
•Address starts with "1ABCDEFGH" → ~months
Tools:
•Vanitygen (offline, open source — recommended)
•Profanity (Ethereum, CAUTION: had bug)
•GPU accelerated vanity address generators
Security:
•Use offline tool — don't upload result to web
•Generate on air-gapped computer
•Profanity2 earlier bug → compromised addresses (Wintermute hack $160M)
When to use:
•Companies wanting branded address
•Donation wallet
•Collectible reasons
Tip: For large value, not worth the risk — use standard generated address.