Hardware wallets remain among the strongest tools for cryptocurrency storage, but the security record of 2026 has made one thing clear: a device is not a guarantee. Chain INK has counted ten security incidents involving hardware-wallet brands or their partners since the start of the year, ranging from exposed customer information to technical flaws and suspected tampering before delivery. Two incidents have been linked to substantial reported losses: a Coldcard firmware vulnerability and thefts affecting Ledger customers who purchased through an Asian reseller.
For beginners, the lesson is not that self-custody has failed, or that every wallet is unsafe. It is that private key protection depends on more than keeping a device offline: firmware, manufacturing and distribution, personal security habits, and the way recovery details are stored all matter. Consider Maya, who has just bought her first wallet. She can lower her risk by buying through trusted channels and checking every transaction on the device—but she also needs to understand phishing, backups, and the limits of any company’s protections. The practical question is no longer simply whether hardware wallets are safe; it is how to use them with care.
In brief: The incidents reported in 2026 expose different weaknesses, not one universal failure of hardware wallets.
Coldcard: A weakness in random-number generation reportedly made some private keys recoverable, despite users following common security practices.
Ledger: Investigators are examining thefts tied to a reseller, with a possible supply-chain attack among the scenarios under review.
What to do: Buy from trusted sources, install verified updates, protect recovery phrases, and treat exchange safeguards as conditional—not guaranteed insurance.
Hardware wallet security in 2026: what the incidents reveal
The ten incidents counted by Chain INK cover several distinct risks. Some involved possible theft or device vulnerabilities; others exposed customer data that could help criminals create convincing phishing messages. Treating them all as “wallet hacks” hides the most useful lesson: the way an attack happens determines what users can do to prevent it.
Coldcard’s wallet firmware flaw and the cost of weak randomness
On July 30, a flaw in Coldcard’s wallet firmware was reported to have affected the random-number generation used to create private keys. If keys can be predicted, an attacker may be able to recover them and access funds; keeping the device offline does not fix that underlying weakness.
The reported loss estimates differ. Chain INK put losses at about $111 million across more than 5,200 wallets, while another analysis cited around $38 million from roughly 500 wallets. These figures should not be combined as if they were a single confirmed total, but both accounts point to the same core issue: cold storage depends on keys being generated with sufficient randomness.
Ledger and suspected supply chain attacks
On October 9, Ledger said it was investigating thefts affecting customers who bought through CryptoBilis, a reseller in Southeast Asia, and asked the reseller to pause sales. One possibility under examination is that devices were manipulated before reaching buyers—a supply-chain attack rather than a conventional remote exploit.
Chain INK estimated losses at $87 million, while Bitquery reported $92.9 million. The discrepancy means these should be treated as separate estimates, not as a final audited figure. For Maya, the practical takeaway is straightforward: purchase through trusted channels, inspect packaging and device setup, and never use a recovery phrase supplied by a seller.
Data leaks, phishing and physical attacks on crypto wallets
Not every incident has produced confirmed cryptocurrency losses. In August, data held by service providers for Trezor and SafePal was exposed, affecting more than 120,000 customers in total; Ledger had also faced a partner-related data leak involving Global-e in January.
A customer email address does not unlock a wallet, but it can make a scam more personal and persuasive. In September, users of Trezor, BitBox, and CoinTracking reported fake security emails sent through service providers, while fraudulent QR-code letters targeted Ledger and Trezor customers. A useful baseline is this crypto security checklist: verify messages through official channels and never enter a recovery phrase into a website or share it with support staff.
When a wallet is physically attacked
Researchers at Ledger Donjon demonstrated that certain protections in Tangem and Trezor Safe 7 devices could be bypassed using a laser. The technique requires physical access and specialized equipment, so it is not the same threat as a mass phishing campaign—but it shows that hardware security has boundaries.
BitBox, meanwhile, patched several firmware vulnerabilities in August before malicious exploitation was known. Updates matter, but users should install them only through official software and confirm what their device displays. For a beginner choosing a device, this guide to securing a first crypto wallet can help turn broad security advice into a safer setup routine.
Is self-custody still safer than keeping crypto on an exchange?
Self-custody gives the owner direct control over private keys, but it also transfers responsibility for backups, device security, and recovery to that person. An exchange can offer account monitoring and customer support, which may feel reassuring to someone like Maya, particularly if she is worried about losing a recovery phrase or being targeted in person.
Some platforms operating under European regulatory frameworks, including MiCA, advertise additional protections. Bitvavo, OKX, and Crypto.com have programs addressing certain unauthorized access cases, while Coinbase has described insurance covering some assets held against theft and cyberattacks. The terms and eligibility requirements matter: these arrangements are not identical, do not guarantee reimbursement for every loss, and are not personal insurance policies covering every customer.
Exchanges bring their own risks, including cyberattacks, financial problems, and suspended withdrawals. Their safeguards may help in specific situations, but they do not remove the need to assess where funds are held. For small amounts used regularly, a reputable exchange may be convenient; for long-term holdings, cold storage can reduce online exposure when the owner can manage backups responsibly.
How to improve private key protection without relying on one device
No wallet maker can promise absolute security, and buying the most expensive device is not a substitute for careful habits. Maya can reduce avoidable risks by purchasing from an authorized source, setting up the wallet herself, checking receiving addresses on the device screen, and keeping her recovery phrase offline in a secure place.
She should also avoid storing a recovery phrase in a photo, cloud account, email, or messaging app. If an unsolicited message claims that her wallet needs urgent verification, she should close it and navigate to the manufacturer’s official site independently. For threats beyond digital theft, including coercion or physical attacks, a guide to personal safety around cryptocurrency adds an important dimension to wallet security.
A practical approach to cryptocurrency storage
For meaningful savings, relying on a single device creates a single point of failure. A more resilient approach can include a carefully protected backup, a second device or recovery method where appropriate, and a clear plan for what to do if a wallet is lost or compromised. Any added complexity should match the user’s experience: a complicated setup that cannot be recovered safely can create as much risk as an overly simple one.
The incidents of 2026 do not make hardware wallets obsolete. They show why hardware wallet security must include the whole journey—from trustworthy distribution and wallet firmware to phishing awareness and physical safety. The strongest setup is not the one that assumes failure is impossible, but the one that limits the damage if something goes wrong.
