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Kraken Reveals Security Vulnerabilities in Bitcoin ATMs
The machines’ manufacturer has released patches to mend the problem, but more revisions may be needed.
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A commonly used model of bitcoin ATMs has several software and hardware vulnerabilities, Kraken Security Labs revealed in a blog post yesterday.
- The security team notified the manufacturer, General Bytes, on April 20 of the attack vectors. General Bytes has released patches for the back-end system, but some fixes may require hardware revisions, Kraken said.
- Bitcoin ATMs allow users to buy bitcoin using fiat currency. General Bytes is the second-largest manufacturer of Bitcoin ATMs, representing 22.7% of the global market, according to information provider Coin ATM Radar.
- The model in question, the BATMtwo (GBBATM2), had several vulnerabilities, according to Kraken, including a default administrative QR code, the underlying Android operating software, the ATM’s management system and the machine’s hardware case.
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Read more: Crypto ATM Installations Have Increased Over 70% This Year
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KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.
知っておくべきこと:
- KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
- This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
- Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
- Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
- Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.
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What to know:
- Tim Grant entered crypto in 2015 after early exposure to Ripple and Coinbase, drawn by blockchain’s ability to improve traditional finance rather than replace it.
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- Grant will be speaking at Consensus Hong Kong in February.
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