Bitcoin price slips after Coldcard hack steals $40 million

Bitcoin dropped below its $60,000 support level after a Coldcard hardware‑wallet bug enabled attackers to steal roughly 600 BTC, valued at about $40 million, prompting market anxiety that the price could tumble toward $58,000【1】.

Coldcard exploit and immediate market reaction

The breach stemmed from a firmware bug in Coldcard Mk3 devices running version 4.0.1 (March 2021) that caused predictable, software‑based key generation instead of true randomness. Researchers estimate the attack drained about 500 wallets, compromising nearly 600 BTC (~$40 million)【1】. Coinkite, the maker of Coldcard, warned users that updating firmware does not fix the compromised seeds and urged migration to new wallets【1】. The news spread quickly, and within minutes the Bitcoin price slipped beneath the $60,000 psychological support that had held since late June, edging toward the $58,000 level cited by market observers as the next barrier【1】.

Broader price context and technical backdrop

Bitcoin’s price had already been under pressure before the hack, having fallen to $60,000 in late June amid broader market weakness【3】. Technical analysis shows the pair trading below the 100‑hour simple moving average and near a bearish trend line with resistance around $105,500, while immediate support sits near $103,000【2】. The recent dip to $60,000 therefore aligns with a larger downtrend, and the Coldcard incident adds a fresh catalyst that could accelerate movement toward lower support zones.

On‑chain and token‑supply considerations

The stolen BTC represents a tiny fraction of Bitcoin’s total circulating supply (≈ 19 million BTC), but the concentration of loss in a single class of hardware wallets highlights systemic risk in seed generation practices. Because the compromised seeds can be exported to other wallets, the vulnerability may propagate beyond Coldcard devices, potentially affecting other hardware‑wallet users who imported the same seeds【1】.

What to watch

• Price thresholds: $58,000 (next support) and $60,000 (key psychological level).
• Further wallet migrations: Monitoring whether users successfully move funds to new seeds or if additional breaches are reported.
• Regulatory or technical updates: Any official patches from Coinkite or broader industry advisories on seed‑generation security.

The Coldcard exploit underscores how software bugs can quickly translate into market volatility, especially when they involve large, previously “cold” holdings. Whether Bitcoin stabilizes above $60,000 or slides toward $58,000 will depend on how swiftly users can secure their assets and whether the incident fuels broader confidence concerns in hardware‑wallet security.