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19 out of 20 words: how to recover your crypto wallet?

Brute Force Tactics Spark Concern | Crypto Wallet Security at Risk

By

Elena Kruger

Aug 6, 2025, 10:39 AM

Edited By

Maya Singh

2 minutes reading time

A person looking at a computer screen with a digital wallet interface, showing 19 words of a passphrase.
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A recent forum post has raised eyebrows within the crypto community. A user shared they are trying to recover funds from a Trezor S.3 wallet after mistakenly altering one word in their 20-word passphrase. The third word was incorrectly copied from another wallet, leaving them with 19 of the required 20 words. This misstep has prompted discussions about wallet security and recovery methods.

The Wallet Woes

The user initially generated a secure wallet but now faces the challenge of retrieving their Ethereum (ETH) assets. Members reacted quickly, questioning why the user mixed up the third word. "Isnโ€™t the 3rd word always 'academic'?" one person asked, hinting at a common misconception about word positioning in SLIP39 wallets.

Interestingly, users noted the SLIP39 standard offers only 1,024 unique words, potentially simplifying brute-force attempts. According to a member, "You can try them for the missing 3rd word with btcRecover."

Community Insights

  • Word Recovery: Users suggest numerous approaches to recover the missing word. One advised checking the entire 20-word sequence for accuracy: "Have you got the rest of the words in their exact order?"

  • Brute Force Tools: Several mentioned tools like btcRecover, confirming its support for SLIP39 wallets since just last week. "BTCRecover supports SLIP39 now, I just added it last week :)"

  • Security Discussion: Members also debated the merits of using longer seed phrases, with one commenting that 24-word BIP39 phrases are more secure than 20-word SLIP39.

Key Takeaways

  • ๐Ÿ› ๏ธ Many community members view brute force recovery as feasible with proper tools.

  • ๐Ÿ’ฌ Mixed signals regarding wallet security draw attention; a shorter seed phrase raises flags.

  • ๐Ÿ“ˆ "This sets dangerous precedent" - a top-voted comment reflecting community sentiment about missed security practices.

As the user seeks to recover their Ethereum, the incident serves as a cautionary tale for crypto users. Engaging with the wider community may provide solutions, but it also highlights the critical need for meticulousness when handling wallet security.

What Lies Ahead for Crypto Wallet Security?

As the situation unfolds, there's a strong chance that wallet providers will ramp up security measures, likely introducing additional verification layers to protect users from similar mishaps. With growing awareness, around 70% of users may choose longer seed phrases, realizing the trade-off between convenience and security. Furthermore, tools like btcRecover could see increased development, with experts estimating that the success rate for brute-force recovery may improve, though it wonโ€™t be foolproof due to inherent vulnerabilities. Overall, the crypto communityโ€™s focus on security practices is likely to turn more urgent in light of this incident.

A Fresh Perspective on Learning from Mistakes

This scenario mirrors the 2010s transition to password managers as people realized the risks of weak passwords, especially after high-profile breaches. Initially, many avoided the change due to convenience, just as some hesitate to adopt longer seed phrases today. However, the eventual shift shows that dire circumstances can force individuals to adapt for improved security; in both instances, an uncomfortable lesson became a catalyst for better practices.