Home
/
Investment guides
/
Risk management
/

Why moving crypto to hardware wallets isn't enough

Crypto Security | The Hidden Risks of Self-Custody

By

Sarah Mitchell

Apr 26, 2026, 12:05 AM

Edited By

Cathy Hackl

3 minutes of duration

A hardware wallet for cryptocurrency sitting on a wooden table, symbolizing self-custody and security.

As self-custody gains popularity among crypto holders, tremendous risks lurk beneath the surface. Following scandals like FTX and Celsius, many people shifted their assets to hardware wallets. But one critical issue remains mostly unspoken: self-custody is a personal venture, and it can hinder inheritance.

The Unseen Challenge of Inheritance

When people die without sharing critical information about their crypto holdings, their heirs often face insurmountable barriers. A notable example involved a woman in North Carolina who discovered her deceased husband possessed over $200,000 in hidden crypto. Despite having a will and a court's backing, she couldn't access the funds due to a missing seed phrase.

Similarly, the late Matthew Mellon reportedly transformed $2 million in Ripple into $500 million but left behind cold wallets with inaccessible keys. His assets remain lost, highlighting an alarming trend: according to estimates, between 2.3 and 4 million Bitcoin is permanently gone, primarily due to individuals passing without leaving proper instructions.

"Finding the seed phrase isn’t enough. Your family also needs to know the wallet software and where the device is."

Numerous commenters express their frustrations on forums, with one remarking that inheritance issues seem to be rarely addressed. Others point out possible solutions, like using tools such as the Cypherock X1, which divides key information across multiple formats to help facilitate recovery.

Documenting Your Crypto Holdings

Experts stress the importance of proper documentation. Besides storing the seed phrase safely, it’s crucial to record:

  • The specific wallet software used

  • Any passphrase set

  • The location of the device

  • A clear instruction sheet for heirs

"This is not rocket science, yet most people don’t do it," one user pointed out.

Recognizing the Security Trade-Off

The security that self-custody offers also presents challenges. While it protects from hacks, unforeseen crises can arise when families aren’t informed. A vivid story from a commenter illustrates this point when a coworker's family inadvertently discarded a computer holding a hundred Bitcoin. The family faced regret later when they learned the worth of those assets had ballooned to nearly $2 million.

Expert Recommendations

Experts recommend users actively prepare for what they may leave behind:

  • Write instructions. Avoid leaving your family in the dark.

  • Discuss holdings with trusted family members. Ensure they know how to access your wallets.

  • Consider solutions like Shamir Secret Sharing technology to minimize single point failures.

Key Insights

◼️ Millions may be losing access to inherited crypto.

⚠️ "Failure to document can lead to permanent loss" - Forum user.

πŸ“œ Simple instructions save families from regret.

As crypto grows more mainstream, the narrative surrounding self-custody needs to evolve. Those entering the crypto space should not only think about how to protect their assets but how to pass them on effectively.

The Road Ahead for Crypto Inheritance

As the crypto landscape continues to evolve, experts estimate that approximately 10% of crypto holders will face inheritance issues due to lack of preparedness. There’s a strong chance that, in the coming years, regulatory bodies could step in with guidelines to promote transparency around crypto holdings. This could lead to a surge in educational programs focused on self-custody and heir awareness, potentially reducing the number of inaccessible assets. As crypto becomes more mainstream, the narrative surrounding estate planning will likely shift, transforming from an overlooked consideration to an essential pillar for responsible crypto ownership.

A Lesson from Time

Consider the fate of ancient shipwrecks that hold treasures lost to time. When a vessel sank centuries ago, the value of its cargo became meaningless to those who could not locate it. Just as modern-day families confront lost crypto assets, so too did those in the past face unclaimed fortunes resting on the ocean floor. The challenge of access and knowledge mirrors the timeless struggles of heirs throughout history; both must bridge the gap between legacy and lost opportunity. It serves as a stark reminder that whether it’s buried treasure or digital assets, clarity and communication remain crucial in preserving wealth.