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coldcard
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Security Alert for Crypto Users
Reports claim that a flaw in Coldcard hardware wallet randomness may have led to the theft of 594 BTC (about $38 million) from around 500 wallets.
⚠️ If confirmed, this would highlight how critical secure seed phrase generation is for hardware wallets.
Key takeaway:
• Always keep your wallet firmware updated.
• Buy hardware wallets only from official sources.
• Verify security advisories before taking action.
• Never share your seed phrase with anyone.
Stay informed, stay secure. 🔒
#Bitcoin #CryptoSecurity #HardwareWallet #BTC #Coldcard
Reports claim that a flaw in Coldcard hardware wallet randomness may have led to the theft of 594 BTC (about $38 million) from around 500 wallets.
⚠️ If confirmed, this would highlight how critical secure seed phrase generation is for hardware wallets.
Key takeaway:
• Always keep your wallet firmware updated.
• Buy hardware wallets only from official sources.
• Verify security advisories before taking action.
• Never share your seed phrase with anyone.
Stay informed, stay secure. 🔒
#Bitcoin #CryptoSecurity #HardwareWallet #BTC #Coldcard
"HOLD UP, Bitcoin fam, looks like the Coldcard thief was basically "funding their habits" with the top blockchain service provider's help. #Coldcard #BlockchainSecurity
THE ALPHA
It turns out, the Coldcard thief didn't even need to "hodl" the secret to their success - they used a top blockchain service to facilitate the hack. Bitcoin holders with Coldcards are advised to move funds ASAP. #BlockchainServices
THE PUNCHLINE INSIGHT
Guess who's got a hot new wallet on their Christmas list? That's right, Bitcoin holders who want to keep their coins safe from rogue 'services' should probably consider a hardware wallet that doesn't rely on being online 24/7.
ENGAGEMENT BAIT
Are you still HODLing on a Coldcard? Better start thinking about an exit strategy..."
THE ALPHA
It turns out, the Coldcard thief didn't even need to "hodl" the secret to their success - they used a top blockchain service to facilitate the hack. Bitcoin holders with Coldcards are advised to move funds ASAP. #BlockchainServices
THE PUNCHLINE INSIGHT
Guess who's got a hot new wallet on their Christmas list? That's right, Bitcoin holders who want to keep their coins safe from rogue 'services' should probably consider a hardware wallet that doesn't rely on being online 24/7.
ENGAGEMENT BAIT
Are you still HODLing on a Coldcard? Better start thinking about an exit strategy..."
Guys...... big news.
Coldcard had a bug.
It made some wallet keys easy to guess.
Hackers took about 594 BTC fast.
Maybe more, close to 1,080 BTC total now.
That's real money gone.
From wallets people thought were 100% safe.
BTC price barely moved though.
Market did not care.
But u should care.
If u use Coldcard, update ur firmware now.
Don't wait.
Move to a new seed after update.
Old one might not be safe anymore.
Lesson here...... "cold wallet" does not mean "no risk" wallet.
Always double check. Always update.
what do u think, does this scare u or not really?
#bitcoin #Coldcard
#bitcoin #Coldcard
#AppleChipShortageHurtsSalesForecast
Coldcard had a bug.
It made some wallet keys easy to guess.
Hackers took about 594 BTC fast.
Maybe more, close to 1,080 BTC total now.
That's real money gone.
From wallets people thought were 100% safe.
BTC price barely moved though.
Market did not care.
But u should care.
If u use Coldcard, update ur firmware now.
Don't wait.
Move to a new seed after update.
Old one might not be safe anymore.
Lesson here...... "cold wallet" does not mean "no risk" wallet.
Always double check. Always update.
what do u think, does this scare u or not really?
#bitcoin #Coldcard
#bitcoin #Coldcard
#AppleChipShortageHurtsSalesForecast
📉 Coldcard Wallet Exploit Shocks Crypto! ⚠️
A critical firmware flaw reportedly led to the theft of 1,082 BTC (~$70M) in just 41 minutes, raising fresh concerns about hardware wallet security.
🔒 Users are urged to update their devices immediately.
Security is only as strong as the latest update. Stay protected.
#bitcoin #BTC #Coldcard $BTC
A critical firmware flaw reportedly led to the theft of 1,082 BTC (~$70M) in just 41 minutes, raising fresh concerns about hardware wallet security.
🔒 Users are urged to update their devices immediately.
Security is only as strong as the latest update. Stay protected.
#bitcoin #BTC #Coldcard $BTC
🚨 JUST IN 🚨
Over $40 million in $BTC has been compromised due to a security vulnerability identified in Coldcard wallets.
#Bitcoin #CryptoNews #Coldcard
$AVAX $DOT
Source: Compiled
Over $40 million in $BTC has been compromised due to a security vulnerability identified in Coldcard wallets.
#Bitcoin #CryptoNews #Coldcard
$AVAX $DOT
Source: Compiled
🚨 JUST IN 🚨
Over $40 million in $BTC has been compromised due to a security vulnerability identified in Coldcard wallets.
#Bitcoin #CryptoNews #Coldcard
$AVAX $DOT
Source: Compiled
Over $40 million in $BTC has been compromised due to a security vulnerability identified in Coldcard wallets.
#Bitcoin #CryptoNews #Coldcard
$AVAX $DOT
Source: Compiled
📰 CRYPTO NEWS 📰
Block team member Max Guise confirmed that recent unauthorized fund transfers from Coldcard wallets stem from a random-number-generation vulnerability affecting Mk2 through Mk5 devices. Impacted users are strongly advised to migrate their assets to a secure wallet as soon as safely possible.
#Coldcard #CryptoSecurity #Block
$DOGE $SOL $XRP
Source: Compiled
Block team member Max Guise confirmed that recent unauthorized fund transfers from Coldcard wallets stem from a random-number-generation vulnerability affecting Mk2 through Mk5 devices. Impacted users are strongly advised to migrate their assets to a secure wallet as soon as safely possible.
#Coldcard #CryptoSecurity #Block
$DOGE $SOL $XRP
Source: Compiled
🚀 MARKET ALERT 🚀
BREAKING: Over $38 million in digital assets has been compromised following a vulnerability identified in Coldcard wallets.
#CryptoNews #Coldcard #CryptoSecurity
$TON $DOGE $NEAR
Source: Compiled
BREAKING: Over $38 million in digital assets has been compromised following a vulnerability identified in Coldcard wallets.
#CryptoNews #Coldcard #CryptoSecurity
$TON $DOGE $NEAR
Source: Compiled
📰 CRYPTO NEWS 📰
Block team member Max Guise confirmed that recent unauthorized fund transfers from Coldcard wallets stem from a random-number-generation vulnerability affecting Mk2 through Mk5 devices. Impacted users are strongly advised to migrate their assets to a secure wallet as soon as safely possible.
#Coldcard #CryptoSecurity #Block
$DOGE $SOL $XRP
Source: Compiled
Block team member Max Guise confirmed that recent unauthorized fund transfers from Coldcard wallets stem from a random-number-generation vulnerability affecting Mk2 through Mk5 devices. Impacted users are strongly advised to migrate their assets to a secure wallet as soon as safely possible.
#Coldcard #CryptoSecurity #Block
$DOGE $SOL $XRP
Source: Compiled
🚨 LATEST UPDATE 🚨
A significant security breach has resulted in the loss of $38 million in Bitcoin. The theft was linked to a specific flaw found within Coldcard keys. Interestingly, the manufacturer of the hardware wallet believes that the vulnerability may have been discovered using artificial intelligence technology. 🛡️
This incident is a major development for the industry because hardware wallets are generally considered the gold standard for securing digital assets. When a trusted device faces a flaw that leads to millions being drained, it raises serious questions about the long-term safety of self-custody methods. Users are now paying closer attention to how advanced computing might impact cryptographic security. ⚠️
How do you feel about using hardware wallets for your long-term storage? 🔍
#Coldcard #BitcoinSecurity #CryptoNews $BTC
$XAUT $ONDO
A significant security breach has resulted in the loss of $38 million in Bitcoin. The theft was linked to a specific flaw found within Coldcard keys. Interestingly, the manufacturer of the hardware wallet believes that the vulnerability may have been discovered using artificial intelligence technology. 🛡️
This incident is a major development for the industry because hardware wallets are generally considered the gold standard for securing digital assets. When a trusted device faces a flaw that leads to millions being drained, it raises serious questions about the long-term safety of self-custody methods. Users are now paying closer attention to how advanced computing might impact cryptographic security. ⚠️
How do you feel about using hardware wallets for your long-term storage? 🔍
#Coldcard #BitcoinSecurity #CryptoNews $BTC
$XAUT $ONDO
Coinkite is advising Coldcard Mk3 users to migrate funds following a potential seed-generation risk. Additionally, security experts are investigating a massive $38 million Bitcoin wallet drain.
#CryptoSecurity #Coldcard
#CryptoSecurity #Coldcard
🚨 The Silent Heist!
How a 2021 code flaw in #Coldcard enabled the theft of $38 million in #bitcoin in just 25 minutes
In a surgical operation that has shaken trust in “cold storage,” cyber pirates managed to drain approximately 594 #bitcoins in a tight window of only 25 minutes. What’s most alarming isn’t the speed of the theft, but the attack vector: a silent vulnerability lurking inside the firmware of the well-known Coldcard hardware wallets for over five years.
The Heist Execution: Between 01:31 and 01:56 UTC on Friday, the attackers emptied around 500 wallets (all single-signature and with more than 0.15 BTC). After moving the funds in a burst of transactions, they consolidated 562 #BTC into a single address that remains inactive. Many of the affected wallets had gone years without any movement.
The Fatal Flaw (“RNG Gate”): Investigations by Block’s security team revealed a catastrophic error. Starting with firmware 4.0.0 (March 2021), a faulty configuration disabled the device’s hardware random number generator.
Predictable Seeds: Instead of generating mathematically impossible-to-guess seed phrases, the device used a basic software routine that relied on the chip’s serial number and the system clock. Since this data was public or easy to measure, attackers could deduce the master keys without physically touching the devices.
Models at Risk: Coinkite, the Canadian manufacturer, issued a red alert for users who generated their seed on an Mk3 model using version 4.0.1 or later. The risk depends on the wallet creation date (2021–2026), not on when the device was purchased. Preliminary analysis indicates the newer models (Mk4, Q, and Mk5) are not affected.
#Hack
$BTC
$ETH
$SOL
How a 2021 code flaw in #Coldcard enabled the theft of $38 million in #bitcoin in just 25 minutes
In a surgical operation that has shaken trust in “cold storage,” cyber pirates managed to drain approximately 594 #bitcoins in a tight window of only 25 minutes. What’s most alarming isn’t the speed of the theft, but the attack vector: a silent vulnerability lurking inside the firmware of the well-known Coldcard hardware wallets for over five years.
The Heist Execution: Between 01:31 and 01:56 UTC on Friday, the attackers emptied around 500 wallets (all single-signature and with more than 0.15 BTC). After moving the funds in a burst of transactions, they consolidated 562 #BTC into a single address that remains inactive. Many of the affected wallets had gone years without any movement.
The Fatal Flaw (“RNG Gate”): Investigations by Block’s security team revealed a catastrophic error. Starting with firmware 4.0.0 (March 2021), a faulty configuration disabled the device’s hardware random number generator.
Predictable Seeds: Instead of generating mathematically impossible-to-guess seed phrases, the device used a basic software routine that relied on the chip’s serial number and the system clock. Since this data was public or easy to measure, attackers could deduce the master keys without physically touching the devices.
Models at Risk: Coinkite, the Canadian manufacturer, issued a red alert for users who generated their seed on an Mk3 model using version 4.0.1 or later. The risk depends on the wallet creation date (2021–2026), not on when the device was purchased. Preliminary analysis indicates the newer models (Mk4, Q, and Mk5) are not affected.
#Hack
$BTC
$ETH
$SOL
A security flaw in cold wallets #Coldcard led to the complete emptying of 1,196 addresses of #bitcoin , with estimated losses of $70.2 million (1,082.65 BTC) during the early hours of July 30.
The attack vector, originally identified by Block engineers, affected the generation of seed phrases in several firmware versions of the Mk3, Mk4, Mk5 and Coldcard Q models. Coinkite, the manufacturer, released emergency updates to mitigate the vulnerability.🤔
$BTC
The attack vector, originally identified by Block engineers, affected the generation of seed phrases in several firmware versions of the Mk3, Mk4, Mk5 and Coldcard Q models. Coinkite, the manufacturer, released emergency updates to mitigate the vulnerability.🤔
$BTC
⚠️ Coldcard warning for Mk3 wallet users amid scrutiny over a $38 million Bitcoin wallet withdrawal
Coinkite, the manufacturer of the Coldcard wallet, has issued a warning to Mk3 users to move their funds after identifying a potential risk related to key generation. The warning comes as Bitcoin security experts investigate an unexplained $38 million withdrawal incident from Bitcoin wallets.
━━━━━━━━━━━━━━
📊 Impact: 🔥 Very High
🏷️ BITCOIN
#Coldcard #Bitcoin #Security #CryptoSafety #Wallet
📰 Source: cointelegraph.com
Coinkite, the manufacturer of the Coldcard wallet, has issued a warning to Mk3 users to move their funds after identifying a potential risk related to key generation. The warning comes as Bitcoin security experts investigate an unexplained $38 million withdrawal incident from Bitcoin wallets.
━━━━━━━━━━━━━━
📊 Impact: 🔥 Very High
🏷️ BITCOIN
#Coldcard #Bitcoin #Security #CryptoSafety #Wallet
📰 Source: cointelegraph.com
⚠️ CRYPTOCURRENCIES SUFFER 30 MAJOR HACKS IN JULY FOR $210.3 MILLION 🚨
The crypto industry recorded 30 serious hacking incidents in July, with total losses of $210.3 million, representing a 177.2% increase compared to the $75.87 million stolen in June, according to Odaily.
The most significant attack of the month involved COLDCARD, with estimated losses of approximately $70 million.
This incident ranks as the third-largest theft in the sector so far this year, again triggering cybersecurity alarms.
#CryptoHack #Cybersecurity #COLDCARD #CryptoNews #DeFi
$BTC
$ETH
$BNB
The crypto industry recorded 30 serious hacking incidents in July, with total losses of $210.3 million, representing a 177.2% increase compared to the $75.87 million stolen in June, according to Odaily.
The most significant attack of the month involved COLDCARD, with estimated losses of approximately $70 million.
This incident ranks as the third-largest theft in the sector so far this year, again triggering cybersecurity alarms.
#CryptoHack #Cybersecurity #COLDCARD #CryptoNews #DeFi
$BTC
$ETH
$BNB
🚨 US$ 38 Millions Drained and the Autocustody Dilemma: What to Learn from the Coldcard Case?
One of the most discussed failures of the year lit a red alert for anyone using hardware wallets. A firmware error in Coldcard affected randomness generation (RNG) when creating BIP-39 seeds, allowing attackers to recreate private keys via brute force and steal nearly 600 BTC.
Coinkite has already released a fix, but the crucial warning remains: updating the firmware DOES NOT protect a seed that was born vulnerable. You must generate a new wallet using the updated firmware and migrate the funds.
💡 3 Quick Lessons for Your Security:
1️⃣ Autocustody is a process, not an event: There’s no such thing as "set it and forget it forever." Follow the security advisories from the manufacturer of your devices.
2️⃣ Understand the risks: By moving off exchanges to avoid counterparty risk, you take on the risk of hardware, software, backups, and OPSEC. Assess whether you have the structure to manage this.
3️⃣ Pay attention to updates: If the vulnerability is at the source of the key (seed generation), you must create a new vault and move the assets.
Security first, always! 🛡️
And you: do you prefer full responsibility for autocustody, prefer to diversify across exchanges, or use a mixed strategy? Let us know in the comments! 👇
#Security #Coldcard #SelfCustody #Hack
One of the most discussed failures of the year lit a red alert for anyone using hardware wallets. A firmware error in Coldcard affected randomness generation (RNG) when creating BIP-39 seeds, allowing attackers to recreate private keys via brute force and steal nearly 600 BTC.
Coinkite has already released a fix, but the crucial warning remains: updating the firmware DOES NOT protect a seed that was born vulnerable. You must generate a new wallet using the updated firmware and migrate the funds.
💡 3 Quick Lessons for Your Security:
1️⃣ Autocustody is a process, not an event: There’s no such thing as "set it and forget it forever." Follow the security advisories from the manufacturer of your devices.
2️⃣ Understand the risks: By moving off exchanges to avoid counterparty risk, you take on the risk of hardware, software, backups, and OPSEC. Assess whether you have the structure to manage this.
3️⃣ Pay attention to updates: If the vulnerability is at the source of the key (seed generation), you must create a new vault and move the assets.
Security first, always! 🛡️
And you: do you prefer full responsibility for autocustody, prefer to diversify across exchanges, or use a mixed strategy? Let us know in the comments! 👇
#Security #Coldcard #SelfCustody #Hack
Coldcard’s security warning about its Mk3 model (affecting seeds generated after firmware 4.0.1) shows that no physical device is infallible against development failures.
In incidents of this magnitude, cryptocurrency cybersecurity requires a defense-in-depth strategy.
Placing absolute trust in the assurances of a single manufacturer represents a systemic risk. To mitigate exposure to hardware or software vulnerabilities, it is essential to implement additional layers of protection:
1. **Multisignature Schemes (Multisig):** Distribute private keys across different devices and manufacturers so that a failure in a single model does not compromise all the funds.
2. **Operational best practices:** Verify firmware integrity, avoid blindly relying on automated processes without backup, and isolate key-generation environments.
3. **Sovereignty and risk management:** Assume that the security of crypto assets does not rest solely on the tool you choose, but on the user’s ability to anticipate failures and decentralize risk.
History shows that no cold wallet is completely invulnerable; true financial resilience is built through diversification and complementary security layers managed by the user.
#Coldcard #Wallet #billeterafria #ciberseguridad #BTC $BTC $WBTC
In incidents of this magnitude, cryptocurrency cybersecurity requires a defense-in-depth strategy.
Placing absolute trust in the assurances of a single manufacturer represents a systemic risk. To mitigate exposure to hardware or software vulnerabilities, it is essential to implement additional layers of protection:
1. **Multisignature Schemes (Multisig):** Distribute private keys across different devices and manufacturers so that a failure in a single model does not compromise all the funds.
2. **Operational best practices:** Verify firmware integrity, avoid blindly relying on automated processes without backup, and isolate key-generation environments.
3. **Sovereignty and risk management:** Assume that the security of crypto assets does not rest solely on the tool you choose, but on the user’s ability to anticipate failures and decentralize risk.
History shows that no cold wallet is completely invulnerable; true financial resilience is built through diversification and complementary security layers managed by the user.
#Coldcard #Wallet #billeterafria #ciberseguridad #BTC $BTC $WBTC
Alexander Guevara
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🟢
❎🚨 UPDATE: More than $10.5 billion in options for $BTC and $ETH are set to expire on Deribit tomorrow, which could drive an increase in market volatility.
❎THIS IS INCREDIBLE.
$40,000,000 in $btc were stolen due to a vulnerability in the Coldcard wallet.
The attacker exploited a flaw in Coldcard’s key generation and stole these funds in 25 minutes.
Even cold wallets aren’t safe anymore.
✅Bitcoin at critical support, breaks above $64k and heads straight to $60k; if you hold it, it will seek the highs at $67k.
✅And the Temu tubers putting in "big trades going long in gold" and getting liquidated... that’s why be careful with scammers.
$XAU #BTC #holder #Coldcard #GOLD #Liquidations
❎🚨 UPDATE: More than $10.5 billion in options for $BTC and $ETH are set to expire on Deribit tomorrow, which could drive an increase in market volatility.
❎THIS IS INCREDIBLE.
$40,000,000 in $btc were stolen due to a vulnerability in the Coldcard wallet.
The attacker exploited a flaw in Coldcard’s key generation and stole these funds in 25 minutes.
Even cold wallets aren’t safe anymore.
✅Bitcoin at critical support, breaks above $64k and heads straight to $60k; if you hold it, it will seek the highs at $67k.
✅And the Temu tubers putting in "big trades going long in gold" and getting liquidated... that’s why be careful with scammers.
$XAU #BTC #holder #Coldcard #GOLD #Liquidations
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