In the latest digital attack, hackers reportedly stole approximately $6.3 billion from Binance, the world’s largest cryptocurrency exchange, on Thursday night in what could be the biggest cryptocurrency theft in history. Investigators believe the attack may have started with a compromised employee laptop, eventually allowing hackers to gain access to the exchange’s internal systems and move billions of dollars in cryptocurrency into wallets they controlled.
Binance suspended deposits and withdrawals while investigators worked to determine how the attackers gained access and whether additional systems had been compromised. The company says customer funds remain safe and that it has enough corporate reserves to cover the losses, but that reassurance does little for customers who suddenly find themselves unable to withdraw money from their accounts.
Making matters worse, Binance wasn’t the only major financial platform dealing with a serious security breach Thursday. Polymarket, one of the largest online prediction markets, temporarily suspended international trading after hackers exploited a compromised third-party software provider. Investigators estimate that approximately $2.7 million was stolen from more than 700 accounts, with some customers reporting losses in the hundreds of thousands of dollars.
We’ve spent years warning that Americans are becoming dangerously dependent on financial systems they don’t control. Between banks pushing customers toward digital-only services, governments exploring digital currencies, and technology companies increasingly positioning themselves between consumers and their money, we’re creating a financial system with fewer ways to operate when something goes wrong. The events surrounding Binance and Polymarket offer another reminder of just how quickly access to money can disappear.
How Hackers Pulled Off the $6.3 Billion Binance Heist
The attack began late Thursday, October 29, when blockchain investigators detected enormous cryptocurrency transfers from wallets associated with Binance. According to blockchain intelligence firm TRM Labs, approximately $6.36 billion was moved across ten different blockchains, with much of the activity occurring within roughly 20 minutes. The reported losses dwarf the February 2025 Bybit hack, which previously held the record at approximately $1.5 billion.
Binance’s preliminary investigation suggested that attackers compromised a laptop belonging to one of its DevOps engineers, giving them a foothold inside the company’s infrastructure. From there, the hackers reportedly gained access to internal services that allowed them to submit withdrawal transactions the system accepted as legitimate. Investigators have since identified additional possible points of compromise, and the company has cautioned that the full sequence of events remains under investigation.
Blockchain intelligence companies TRM Labs and Chainalysis have attributed the attack to TraderTraitor, a hacking operation associated with North Korea. The same group has been linked to previous cryptocurrency thefts, including the massive Bybit breach. Binance has not formally confirmed who was responsible, although North Korean hacking operations have a long history of targeting financial institutions and cryptocurrency exchanges to generate money for the regime.
What makes this attack particularly concerning is that investigators have not reported a fundamental failure of the underlying cryptocurrency networks. Instead, the available evidence points toward weaknesses in the centralized systems responsible for managing the assets. Exchanges spend enormous amounts of money on cybersecurity, yet a compromised employee device or internal service can potentially give attackers access to assets worth billions.
Binance says the stolen cryptocurrency came from company-controlled holdings rather than individual customer accounts. It has pledged to cover the losses using corporate reserves and other available resources, while cryptocurrency issuers and investigators have reportedly frozen approximately $3 billion of the stolen assets. Even with those efforts, billions remain unrecovered, and customers have been left waiting for Binance to restore normal withdrawals.
For people who depend on these platforms, the distinction between having money stolen and temporarily losing access to it can become surprisingly small. Your account balance might still show every dollar you deposited, but if the company suspends withdrawals, there’s very little you can do until it decides to reopen the system.
Polymarket Suffers Another Major Security Breach
While Binance was dealing with what could become the largest cryptocurrency theft ever recorded, Polymarket was investigating a separate incident that highlights another major vulnerability in the digital financial system.
On Thursday afternoon, users began reporting unauthorized transactions and money disappearing from their accounts. Polymarket subsequently restricted international trading and suspended certain transaction services while investigating what it described as a security issue involving an outside software provider.
Researchers investigating the incident reported that malicious code associated with a compromised third-party service may have targeted customers who were already logged into the platform. Rather than stealing passwords and attempting to break into accounts individually, the attackers reportedly exploited active user sessions to initiate unauthorized transactions. Blockchain investigators estimated that approximately $2.7 million was taken from hundreds of affected accounts before the activity was stopped.
Polymarket says the vulnerability has been addressed and that affected customers will be reimbursed. The company had also dealt with earlier security incidents involving compromised software and outside providers, raising additional questions about the risks created when financial platforms depend on an expanding collection of third-party services.
The problem extends well beyond cryptocurrency exchanges and prediction markets. Traditional banks, payment processors, credit unions, online retailers, and other businesses increasingly rely on interconnected systems operated by outside technology companies. A vulnerability at a single provider can potentially expose customers across numerous businesses, even when those businesses believe their own internal security systems are functioning properly.
We’ve Been Warning About the Dangers of a Cashless Society for Years
Long before Thursday’s attacks, we warned readers about the risks of allowing physical cash and independent financial transactions to disappear.
In our article, Why Preppers Should Be Seriously Concerned About a Cashless Society, we discussed how the transition toward digital-only money could leave ordinary Americans increasingly dependent on banks, payment networks, government policies, and technology companies simply to conduct everyday transactions.
Much of the debate surrounding cashless payments focuses on convenience, but convenience means very little when the systems required to process those payments become unavailable. Whether the disruption comes from a cyberattack, a prolonged power outage, a financial institution freezing accounts, or a government restricting access to certain transactions, the result can be the same for people who have no alternative way to pay for what they need.
Thursday’s incidents are particularly relevant because neither involved a nationwide financial collapse or a coordinated attack against the traditional banking system. These were security breaches affecting individual companies, yet they were serious enough to interrupt services and prevent customers from conducting transactions.
Now imagine similar problems affecting a major bank’s payment infrastructure, a national card-processing network, or one of the technology providers responsible for handling electronic transactions across thousands of businesses. Even a relatively short disruption could cause major problems for households that no longer keep cash, depend entirely on mobile payment apps, or have every dollar tied to a single institution.
There is also a significant difference between owning cryptocurrency and allowing a centralized exchange to hold it for you. One of Bitcoin’s original selling points was the ability to transfer value without relying on the traditional banking system, but millions of investors now store their holdings with companies that effectively control whether those assets can be accessed or transferred.
Anyone holding cryptocurrency directly in a properly secured wallet still faces risks, including theft, lost recovery keys, and compromised devices. However, they aren’t dependent on an exchange remaining operational to authorize a transaction. That distinction becomes especially important when an exchange suspends withdrawals for days while investigating a security breach.
The larger concern has always been the gradual elimination of alternatives. As more financial activity moves into systems that require an internet connection, a functioning payment network, and permission from a financial intermediary, individuals become increasingly vulnerable to disruptions outside their control.
Cyberattacks Are Becoming a Bigger Threat to Everyday Life
These incidents also come during a period of growing concern about the ability of hackers to target critical infrastructure and financial institutions.
Last week, we reported on AI systems being used to attack banks, hack companies, and exploit weaknesses in critical infrastructure. We’ve also covered major security vulnerabilities affecting the software used to operate a substantial portion of the internet, along with warnings from security researchers that increasingly automated attacks could make it easier for criminals to identify and exploit weaknesses before organizations can fix them.
There is no confirmed evidence that artificial intelligence was involved in either the Binance or Polymarket breaches. However, both incidents demonstrate how attackers can exploit weaknesses in the software, services, and access controls that financial platforms rely on. As more businesses incorporate automated systems and third-party technology into their operations, the consequences of a single compromised component can become significantly more serious.
Financial institutions aren’t the only potential targets. Power companies, hospitals, communications networks, transportation providers, and food distribution systems all depend on interconnected digital infrastructure. A serious attack against one of those systems could affect services that millions of people rely on every day, particularly when organizations have few practical ways to continue operating without their normal networks.
For preparedness-minded Americans, that makes cybersecurity a much broader concern than simply protecting passwords or avoiding online scams. A major cyberattack doesn’t have to steal your money directly to create a financial emergency. Disrupting access to banking services, electronic payments, fuel distribution, or communications for several days could be enough to cause significant problems.
What You Can Do to Protect Yourself
There isn’t much the average person can do to prevent a foreign intelligence service from hacking a major financial institution. What you can control is how dependent you are on that institution and whether you have other options available when its systems stop working.
Keep emergency cash at home. Physical cash remains one of the simplest ways to maintain some purchasing ability during an electronic payment outage. We recommend maintaining a reserve that can cover several weeks of essential expenses when practical, with enough smaller bills to handle ordinary purchases. Cash isn’t a perfect solution, especially during widespread emergencies when stores may close or supplies become unavailable, but it provides an alternative to electronic systems that may not be functioning.
Avoid keeping all your money with one institution. Maintaining accounts at more than one bank or credit union can reduce the likelihood that a single outage, security incident, or unexpected account restriction leaves you without access to your savings. When possible, use institutions with separate payment and technology infrastructure rather than assuming two accounts at the same provider offer meaningful redundancy.
Be careful about storing cryptocurrency on exchanges. Anyone holding substantial cryptocurrency should understand the difference between exchange custody and controlling assets through a private wallet. Hardware wallets can provide additional protection against certain risks, but they require secure setup, careful management of recovery information, and an understanding that losing access to your keys may mean permanently losing the assets.
Protect your online accounts. Strong, unique passwords and multifactor authentication remain important, particularly when dealing with financial services. Security keys and other phishing-resistant authentication methods can offer stronger protection than text-message codes. It’s also worth periodically reviewing which outside applications have permission to connect to your financial accounts and removing access that is no longer necessary.
Maintain important financial records offline. Securely stored copies of account statements, insurance policies, emergency contacts, and other financial documents can be valuable when a company’s website is unavailable or when you need to establish ownership of an account following a security incident. Keep sensitive information protected from theft or unauthorized access.
Prepare for broader disruptions. Financial emergencies rarely happen in isolation during major disasters. Having emergency food supplies, drinking water, backup power, and alternative communications reduces the number of essential services you need to access during an outage. Our guides to building an offline information library and emergency communications cover additional ways to reduce dependence on internet-connected systems.
The Bigger Problem With Depending on Digital Money
Binance has promised to absorb the losses from Thursday’s attack, and Polymarket says its affected customers will be reimbursed. Those commitments may ultimately protect customers from permanent financial losses, but they don’t eliminate the underlying risk of depending entirely on companies and networks that can suspend access without warning.
The financial industry continues moving toward a future where cash is increasingly discouraged, traditional banking services are replaced by smartphone applications, and more transactions pass through centralized digital platforms. Supporters point to convenience, faster payments, and improved access to financial services, but those benefits come with vulnerabilities that are becoming harder to ignore.
We’ve warned about this trend for years because emergency preparedness has always involved maintaining the ability to function when normal systems fail, and not putting yourself inside these digital cages. People store emergency water because municipal systems can lose pressure or become contaminated. They keep backup power because the electrical grid can go down. Financial preparedness should follow the same logic, yet millions of Americans have no meaningful way to access or spend money if their bank or payment provider suddenly becomes unavailable.
The reported $6.3 billion Binance theft is an extraordinary example of how much damage a successful cyberattack can cause, but the broader concern is the growing number of ordinary financial activities that now depend entirely on systems controlled by someone else.
Whether you’re holding cryptocurrency, keeping savings in a bank, or relying on digital payments for everyday purchases, you should have a backup plan that doesn’t require every network and financial institution to remain operational. Given the increasing frequency and sophistication of attacks against digital infrastructure, that’s becoming a basic part of financial preparedness.
