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Technical breakdown: why coldcard failed while others thrived

Coldcard Fails to Deliver | Tech Breakdown Raises Questions

By

Sophie Chang

Aug 23, 2026, 06:35 AM

Edited By

Lina Zhang

2 minutes reading time

A graphic showing the Coldcard wallet with warning signs compared to other reliable wallets with thumbs up icons

A recent analysis on tech failures highlights Coldcard's shortcomings compared to its competitors. A well-known tech commentator warned of these vulnerabilities three years back, detailing why Coldcard's implementation went awry while other wallets remain reliable.

What Went Wrong?

In a video, the commentator scrutinized Coldcard's reliance on a flawed pseudo-random number generator, calling it an "incompetent fallback". Critics note that while Coldcard did not write this code, using default libraries without thorough testing can lead to significant risks.

Users Weigh In

People on user boards echo their frustrations regarding Coldcard's performance. One user expressed disbelief, saying, "It keeps amazing me how bad the โ€˜fall-backโ€™ PRNG was." Another user added, "This guy is great, watched all vids since I started." The sentiment towards the commentary is largely positive, reflecting a desire for deeper understanding.

Comparisons with Other Wallets

Others have pointed to several hardware wallets that faced issues but did not compromise security in the same way. For instance:

  • Trezor Model T: Faced a chip vulnerability, requiring physical access for exploitation.

  • Ledger and Electrum: Had incidents, though none impacted seed phrase generation like Coldcard.

Interestingly, one user noted, "Nope, so far no other wallet has failed to generate its seed phrase." This suggests Coldcardโ€™s issues may be unique and not indicative of the industry as a whole.

Key Insights

๐Ÿ”น Coldcard's use of a library default raises questions about security practices.

๐Ÿ”น Users show strong preference for wallets without similar failures.

๐Ÿ’ฌ โ€œI second this. Would like to know what other hardware wallet had failures not related to user error,โ€ said another.

๐Ÿ’ก The takeaway? A solid understanding of hardware wallet security is crucial before making investment or usage decisions in the crypto space.

The End

As tech enthusiasts reflect on this significant failure, it underscores the importance of rigorous testing and scrutiny in the crypto wallet industry. Where does this leave Coldcard, and can they recover from this reputation blow?

For further insights, visit TechCrunch and CoinDesk for more on this evolving narrative.

Future Unfolding Scenarios

As Coldcard faces scrutiny, the company has a strong chance to adapt by improving their security protocols. Industry experts estimate around a 60% likelihood that they will implement stricter testing on their software updates to regain user trust. If they succeed, we may see a gradual recovery in their market presence, but this hinges on their ability to communicate transparently. Additionally, with competitors gaining momentum, about 40% of analysts predict that Coldcard could lose market share to more reliable wallets if they fail to act swiftly.

A Fresh Lens on Past Struggles

This situation draws an intriguing parallel to the early days of the smartphone market, particularly the challenges faced by certain manufacturers in the wake of security breaches. Just as those companies had to rebuild user trust through enhanced security measures and transparency, Coldcard now finds itself at a crossroads. The actions taken in the next few months could define their trajectory. If Coldcard learns from the lessons of the smartphone struggle, they might not just survive but find new strengths in operational rigor.