Bitcoiners Opt for Dice Throws Amid Coldcard Hack

In the wake of a major security breach at Coldcard, one of the leading hardware wallet manufacturers for Bitcoin (BTC), users have been reassessing their custodial methods. A low-entropy bug in firmware versions after March 2021 has led to significant thefts worth over $100 million.

Coldcard devices originally relied on true random number generators (TRNGs) but switched from a free software model, which introduced the vulnerability. Firmware version 4.0.1 and later used MicroPython’s Yasmarang PRNG instead of the STM32 hardware RNG, significantly reducing entropy levels to around 40-70 bits for secure seed phrases.

The impact has been severe, with attackers successfully brute-forcing private keys through these weakly generated seeds. To mitigate risks, many Bitcoiners are now using dice throws as a transparent and auditable method of generating sufficient entropy, ensuring their funds remain safe from such exploits.

Dice-based methods offer a simple yet effective way to generate 128-bit secure seed phrases by rolling multiple six-sided dice. Websites like cktripwire have emerged to help users verify the security of their wallets through cross-checks and public addresses designed as honeypots.

This incident underscores the importance of self-custody in cryptocurrency, emphasizing that relying solely on hardware wallet manufacturers can be risky. Dice throws provide a decentralized approach where users retain full control over seed generation, reducing single points of failure.

While some argue this event signals the end of trust in hardware wallets, others see it as an opportunity to enhance security practices. Moving forward, traders and investors should monitor ongoing developments in secure entropy generation methods and consider integrating dice-based solutions into their self-custody strategies.

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Source: Cointelegraph. Summarized and rewritten by the Vexoda Newsroom. This is market news, not financial advice.