Wondering why some crypto accounts get drained and how you can keep your digital assets safe? This article explains the common ways crypto theft occurs, the safeguards you can use, and what you should look for before trusting a platform.
The plain explanation
Crypto theft usually involves unauthorized access to a wallet or an exchange account. A wallet is a software or hardware tool that stores the private keys needed to move cryptocurrencies. An exchange is a service that holds users’ funds in custodial accounts, meaning the exchange controls the private keys on behalf of its customers.
When a thief obtains those private keys—or convinces the exchange to move funds—they can transfer the assets to an address they control. Common attack vectors include:
- Phishing attacks: Fake emails or websites that trick users into entering login credentials.
- Credential stuffing: Using leaked usernames and passwords from other services to try logging into crypto accounts.
- Insider compromise: Employees or contractors with privileged access misusing their rights.
- Software vulnerabilities: Bugs in exchange platforms or wallet apps that allow unauthorized transactions.
- Social engineering: Direct manipulation of support staff to reset passwords or approve withdrawals.
Once the attacker controls the private keys or has the exchange move the funds, the crypto is typically sent to a series of “mixing” services or new wallets, making it hard to trace and recover.
A real example
In March 2026, blockchain investigator ZachXBT identified the French bank Crédit Mutuel Arkéa as a suspected victim of a $133 million crypto theft. The alleged loss came from accounts on the Crypto.com exchange. Crypto.com later confirmed that it had blocked the funds linked to the theft, illustrating how exchanges can intervene once suspicious activity is detected.
What it means for you
If you store crypto on an exchange, you are relying on that platform’s security practices. A breach or internal failure can result in loss of funds, even if you have strong personal passwords. Conversely, managing your own private keys (a non‑custodial wallet) removes the exchange from the equation, but it also places full responsibility for security on you.
Both approaches have trade‑offs. Custodial services offer convenience and often insurance, while self‑custody gives you full control but requires diligent security habits.
What to check / how to judge
- Security certifications: Look for exchanges that undergo regular security audits and have third‑party certifications.
- Two‑factor authentication (2FA): Ensure the platform supports 2FA and that you enable it. Prefer authenticator apps over SMS.
- Withdrawal limits and whitelists: Platforms that let you set daily limits or restrict withdrawals to pre‑approved addresses add an extra barrier.
- Cold storage practices: Reputable exchanges keep the majority of assets offline (cold storage), reducing exposure to hacks.
- Transparency reports: Regular publishing of security incidents, audit results, and insurance coverage shows accountability.
- Community reputation: Check forums, independent reviews, and past incident histories before depositing large sums.
FAQ
How can I tell if an exchange is safe?
Look for a combination of third‑party audits, strong 2FA options, clear withdrawal controls, and a track record of handling security incidents responsibly. No platform is 100 % risk‑free, but these factors lower the odds of a breach.
Is keeping crypto in a hardware wallet safer than on an exchange?
Hardware wallets store private keys offline, protecting them from online attacks. However, you must safeguard the device and backup seed phrase. Loss or damage to the hardware can also mean loss of access.
What should I do if I suspect my account has been compromised?
Immediately change your passwords, enable or reset 2FA, and contact the platform’s support. If funds have moved, request that the exchange freeze the transaction if possible, as Crypto.com did in the Arkéa case.
Can insurance cover crypto theft?
Some custodial services carry insurance for certain types of loss, but policies often have limits and exclusions. Always read the fine print to understand what is covered.
This article references reporting from coindesk.com.
