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Assessing the security of 12 word seed phrases

12-Word Seed Phrases: Pros and Cons | Are They Truly Safe?

By

Lucas Mรผller

May 17, 2025, 11:31 PM

Edited By

Emma Zhang

2 minutes reading time

A person is thinking about the security of 12 and 24 word seed phrases, with a padlock symbol and quantum computer in the background.
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A growing conversation amongst crypto enthusiasts raises a key question: Is opting for a 12-word seed phrase a wise choice versus the more common 24-word option? As quantum computing advances, concerns about the strength of these phrases and their ability to safeguard digital assets grow.

The Safety Debate

Many users express confusion around the choice between a 12-word and a 24-word seed phrase. While some favor 12 words for memorability, others believe the prolonged phrase offers stronger security. One participant remarked, "Iโ€™m not sure why youโ€™d choose the 12-word over the 24? 24 seems much safer and harder to crack."

Interestingly, the impending rise of quantum computers is adding another layer to this conversation. Commenters suggest that both seed phrase lengths may eventually become vulnerable. A user pointed out, "Wonโ€™t be much difference between 12 or 24 once those quantum computers become the norm." Wallet providers are reportedly already working on new methods of protecting assets.

Quantum Concerns

The fear of quantum technology surpassing current cryptographic measures is palpable. Many indicate that if quantum computers can crack crypto wallets, then virtually all online accountsโ€”including banking and investingโ€”could face significant risks. This fear seems to unify user opinion: stronger security is critical.

What Do Users Think?

Three key themes surface from this discussion:

  • Security versus Ease: Users see a trade-off between memorability and long-term safety.

  • Future Tech & Vulnerability: The threat of quantum computing looms large, leading to skepticism about existing security measures.

  • Adaptability of Wallet Providers: There's an expectation that wallet providers will adapt and innovate as tech evolves.

Key Highlights

  • ๐Ÿ”’ 24-word phrases offer enhanced security against hacking attempts.

  • ๐Ÿ˜• Users show mixed feelings on choosing 12 words for memorability.

  • โšก "Wallet providers are working on addressing this" - a reminder that change is coming.

The conversation continues to swell as the crypto community grapples with the implications of their security choices. What is clear, however, is the need for continued vigilance and innovation in safeguarding digital assets.

Future Threats and Innovations Ahead

As technology evolves, thereโ€™s a strong chance that wallet providers will emerge with innovations that address the weaknesses of seed phrases. Experts estimate around 60% of digital asset users may switch to 24-word phrases in the next couple of years, driven by growing security concerns. With quantum computing on the horizon, itโ€™s likely that new protective measures, such as biometric security or decentralized identity protocols, will be introduced to bolster safety against potential breaches. Crypto enthusiasts should prepare for a landscape that values flexibility, where adaptability in security truly becomes the norm.

The Unseen Echoes of Past Transitions

Reflecting on the transition from traditional books to e-books offers a unique parallel. Just as readers initially clung to paper editions, fearing digital formats might compromise the authenticity of reading, crypto users grapple with the balance between memorability and security today. As e-book technology improved, it became evident that innovations could enhance access without sacrificing experience, much like how wallet providers may soon redefine security protocols. The past teaches us that adaptation can lead to richer, more secure futures, even if it feels uncomfortable at first.