This week in the crypto market was marked by alarming news: a bitcoin vulnerability in one of the popular hardware wallets, large coin movements, new scam schemes, and growing interest in cold storage devices. Bitcoin was once again in the spotlight, and security became a key topic for investors and developers.
Monday: Coldcard Hack, Strategy Sales, and Trump Miners’ Loss
Coldcard Hardware Bitcoin Wallets Hacked for $115 Million
A serious security issue was discovered in one of the oldest hardware crypto wallets. A brief summary of the incident:
- Date: Monday.
- Type of vulnerability: security issue in the Coldcard hardware crypto wallet.
- Description: attackers gained access to bitcoins belonging to thousands of owners.
- Amount of damage: more than $100 million stolen, with losses estimated at $115 million.
Such incidents are especially painful for the market because hardware wallets are considered one of the most reliable storage methods. Cases like this center around cryptography, electronic signatures, cryptographic keys, and transaction verification algorithms. For Bitcoin, both ECDSA and correct handling of each transaction in blockchain computing are important: a software error in these elements can lead to large-scale losses.
Michael Saylor’s Strategy Company Sold Another $104 Million in Bitcoin
Strategy, which had been increasing its bitcoin position for several years, reduced its reserves again. The company sold another portion of cryptocurrency worth $104 million. Since the beginning of summer, total sales have exceeded $300 million.
Trump Mining Company Reported a $57 Million Loss
The Trump family mining business reported a $57 million loss. At the same time, the company claims that its bitcoin mining cost is about 40% lower than the current market price of the coin.
Tuesday: FBI Agent Case, GRAM Drop, and Tax Service Questions
FBI Agent Stole $1 Million in Cryptocurrency and Asked ChatGPT About Investments
An employee of the American special service stole cryptocurrency from wallets linked to investigations. After that, he turned to ChatGPT with questions about where to invest money profitably and how to move to Europe.
GRAM Plunged After Telegram Was Removed From the App Store
The native cryptocurrency of the TON blockchain dropped after Telegram disappeared from Apple’s app store. When the messenger returned to the App Store, the GRAM rate began to recover.
Lawyers Explained How to Respond to Tax Service About Purchases With Crypto Income
Experts analyzed the situation for those who made large purchases with funds received from cryptocurrency operations but did not declare such income. Special attention was paid to how to respond to tax service requests.
Wednesday: Ex-Police Officer Sentenced, $9 Billion Movement, and Operation Blackout
Former Police Officer Received Life Sentence for Stealing Bitcoins From a Teenager
A former Los Angeles police officer and three accomplices broke into a 17-year-old’s apartment. Under threat of murder, they forced him to hand over passwords to crypto wallets.
After Coldcard Hack, $9 Billion in Bitcoin Moved to Exchanges and New Addresses
Amid the attack on popular hardware wallets, retail investor activity in the Bitcoin network reached a four-year high. About $9 billion in bitcoin was transferred to exchanges and new addresses.
FBI Announced Seizure of $15 Billion as Part of Operation Blackout
The U.S. Federal Bureau of Investigation reported a major operation against scam factories. FBI chief Kash Patel emphasized that the agency is no longer limited to tracking down individual scammers and is now targeting the destruction of entire criminal networks.
Thursday: Mining, MiCA Rules, and AI Vulnerability Search
Bitcoin Mining Profitability Rose 10% in a Month
Bitcoin mining became 10% more profitable over the month. However, the cost of mining still remains higher than the market price of the coin, so miners are in no hurry to sharply increase activity.
After MiCA Rules Launched in the EU, Scammers Invented a New Scheme
Attackers began posing as regulators. They contact crypto service clients who did not have time to obtain a license and offer to transfer assets to supposedly licensed platforms.
AI Found Hundreds of Serious Vulnerabilities in the Bitcoin Ecosystem in a Day
Amid a surge in hacks, a group of developers connected several AI systems to search for problems in the code of crypto projects related to Bitcoin. The result was significant: hundreds of vulnerabilities were discovered in a day.
Friday: CLARITY Act, Wallets for AI Agents, and Demand in Russia
CLARITY Act Vote in the U.S. Postponed Until Fall
The adoption of the important CLARITY Act bill for the crypto industry was postponed. Democratic senators insisted that the vote not be held before the recess.
MetaMask and Cloudflare Showed Crypto Wallets for AI Agents
MetaMask and Cloudflare presented solutions for autonomous AI programs. Such wallets give agents access to real assets, while allowing security parameters to be configured.
Interest in Hardware Crypto Wallets Grew in Russia
Sales of physical crypto wallets increased significantly on Russian marketplaces. Demand for cold storage devices grew by dozens of percent.
What Is Important to Understand About Cryptocurrency
Cryptocurrency remains a convenient but risky tool: it can be bought, stored, and used, but the level of security depends on several factors at once.
- Code quality: errors in wallets, libraries, and services can open the way to theft of funds.
- Wallet reliability: even a hardware device requires updates, firmware checks, and careful setup.
- Owner attentiveness: phishing, fake apps, and incorrectly checked addresses are often more dangerous than the Bitcoin network itself.
- Key protection: private keys and seed phrases should not be stored in the cloud, messengers, or on a device with constant internet access.
- Transaction verification: before sending, it is important to check the address, amount, and network, because a transaction in Bitcoin cannot be reversed.
- Error detection: code audits and testing help find vulnerabilities before attackers exploit them.
Can Bitcoin Be Hacked and What Attacks Are Possible
Hacking Bitcoin can mean different things: an attack on the protocol itself, a network failure, theft of coins from a wallet, or hacking a service where assets are stored. In practice, wallets, exchanges, apps, and users suffer more often than the core Bitcoin protocol. The network’s resilience depends on the distribution of computing power, the number of independent nodes, the quality of client software, and the speed of fixing bugs.
- 51% attack: if one participant or group gains control of most of the computing power, there is a risk of rewriting recent blocks, double spending, and delayed confirmations.
- DoS attacks: the network or individual nodes are overloaded with excessive requests or transactions, making it harder for users to send operations and wait for confirmations.
- Sybil attack: an attacker creates many nodes or accounts, trying to isolate the user, impose an incomplete view of the network, and strengthen other attacks.
How to Reduce the Risk of Bitcoin Theft
Basic protection starts with simple habits: buy wallets from trusted sellers, update firmware, do not enter seed phrases on websites, do not send private keys, and store backups separately from the main device. For large amounts, it is better to use cold storage, and for operations through exchanges and services, enable two-factor authentication, check withdrawal addresses, and pre-limit access rights.
Backups should be stored so that they cannot be lost if your phone, computer, or wallet breaks. At the same time, the backup should not become a weak point: only the owner should have access to it, with no photos in the gallery, files on the desktop, or notes in the cloud.
Technological, Future, and Regulatory Risks
Technological risks are associated with code errors, protocol vulnerabilities, incorrect signature handling, and possible obsolescence of cryptographic algorithms. Any major change in Bitcoin infrastructure requires careful review: an update can improve security, but an implementation error can create a new attack vector.
Randstorm refers to vulnerabilities related to weak random number generation: if keys were created unreliably, an attacker may try to regain access to old wallets. DeserializeSignature is related to the handling and verification of digital signatures: a failure in such a mechanism is dangerous for programs that incorrectly parse signatures and make transaction decisions. The risk is reduced by wallet updates, moving funds to new addresses, library audits, and abandoning old software.
As the number of users grows, scalability issues, service load, transaction queues, and scammers’ interest in mass attacks increase. Regulatory changes also affect security: new requirements for licensing, data storage, and platform operations can restrict withdrawals, change service access rules, and push users toward dubious intermediaries posing as legitimate platforms.
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