Wondering why some crypto exchanges get robbed and what you can do to keep your holdings safe? This article explains the mechanics behind exchange hacks, the typical paths attackers use, and practical steps you can take to reduce risk.
What a crypto exchange hack actually looks like
A crypto exchange is a platform that lets users buy, sell, and store digital assets. To operate, exchanges hold large amounts of cryptocurrency in hot wallets (online) for day‑to‑day transactions and in cold wallets (offline) for long‑term storage. Hackers target the hot wallets because they are connected to the internet and therefore more vulnerable.
When an attacker breaches an exchange, they typically gain access to private keys or exploit a software vulnerability that lets them move funds without the exchange’s consent. Once inside, they can transfer the stolen assets to a series of intermediate addresses to obscure the trail. Common techniques include:
- Chain hopping: Moving the stolen crypto across multiple blockchains (for example, converting Ether (ETH) to Bitcoin (BTC) and then to a privacy coin) to make tracking harder.
- Use of instant exchanges: Converting assets on fast, low‑friction services that do not require extensive KYC, allowing rapid value changes.
- Privacy coins: Sending funds to coins like Monero, which hide transaction details, before cashing out.
Because blockchain transactions are public, investigators can follow the flow, but each hop adds a layer of complexity. The end result is that the original exchange loses the value of the stolen coins, often amounting to millions of dollars.
Real‑world illustration
In March 2026, a European‑based entity reported a loss of roughly $106 million after an unidentified attacker moved funds through Ether, instant exchanges, and Monero. The victim exchange and the specific platforms used to launder the money were not disclosed, but the pattern matches the chain‑hopping and privacy‑coin tactics described above.
What this means for you
If you keep crypto on an exchange, you are effectively trusting that platform with the security of your private keys. A successful hack can result in total loss of the assets you stored there. While many exchanges have insurance or compensation funds, payouts are not guaranteed and can take months to process. Therefore, relying solely on an exchange for long‑term storage carries significant risk.
How to evaluate an exchange’s safety
- Security audits: Look for publicly available third‑party audits of the exchange’s code and infrastructure.
- Cold‑storage ratio: Exchanges that store the majority of user funds offline are generally safer.
- Two‑factor authentication (2FA): Mandatory 2FA for withdrawals adds an extra barrier for attackers.
- Regulatory compliance: Registration with reputable financial authorities often requires stricter security standards.
- Transparency reports: Regular disclosures about security incidents and how they were handled indicate a proactive approach.
- Withdrawal limits: Low daily limits reduce the amount an attacker can move in a single breach.
FAQ
What’s the difference between hot and cold wallets?
Hot wallets are connected to the internet and used for frequent transactions, making them convenient but more exposed to attacks. Cold wallets are offline devices or paper backups that store private keys away from the internet, offering stronger protection for long‑term holdings.
Can I trust an exchange that has never been hacked?
Absence of a public breach does not guarantee safety. New vulnerabilities can emerge, and some attacks go undisclosed. Always apply best‑practice security measures regardless of an exchange’s history.
Is using a privacy coin like Monero a safe way to store my assets?
Privacy coins conceal transaction details, which can protect your privacy but also make them attractive to illicit actors. They are not inherently safer for storage; the security depends on how you manage the private keys.
Should I move all my crypto off exchanges?
For large balances or assets you plan to hold long‑term, moving them to a personal cold wallet is advisable. Keep only the amount you need for active trading on the exchange, and enable all available security features.
This article references reporting from coindesk.com.
