Key takeaways:
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Over $2.4 billion was stolen in the first half of 2025, already surpassing 2024’s total.
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Everyday traps such as phishing, toxic approvals and fake “support” cause more damage than exotic exploits.
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Strong 2FA, careful signing, hot/cold wallet separation and clean devices dramatically reduce risk.
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Having a recovery plan — with revocation tools, support contacts and reporting portals — can turn a mistake into a setback instead of a disaster.
Crypto hacks are still on the rise. In the first half of 2025 alone, security firms recorded more than $2.4 billion stolen across more than 300 incidents, already exceeding 2024’s total thefts.
One major breach, the Bybit theft attributed to North Korean groups, skewed the numbers upward, but it shouldn’t claim all the attention.
Most everyday losses still come from simple traps: phishing links, malicious wallet approvals, SIM swaps and fake “support” accounts.
The good news: You don’t have to be a cybersecurity expert to improve your safety. A few core habits (which you can set up in minutes) can dramatically lower your risk.
Here are seven that matter most in 2025.
1. Ditch SMS: Use phishing-resistant 2FA everywhere
If you’re still relying on SMS codes to secure your accounts, you’re leaving yourself exposed.
SIM-swap attacks remain one of the most common ways criminals drain wallets, and prosecutors continue to seize millions tied to them.
The safer move is phishing-resistant two-factor authentication (2FA) (think hardware security keys or platform passkeys).
Start by locking down your most critical logins: email, exchanges and your password manager.
US cybersecurity agencies like the Cybersecurity and Infrastructure Security Agency stress this because it blocks phishing tricks and “push-fatigue” scams that bypass weaker forms of multi-factor authentication (MFA).
Pair it with long, unique passphrases (length beats complexity), store backup codes offline and on exchanges and turn on withdrawal allowlists so funds can only move to addresses you control.
Did you know? Phishing attacks targeting crypto users rose by 40% in the first half of 2025, with fake exchange sites being a major vector.
2. Signing hygiene: Stop drainers and toxic approvals
Most people don’t lose funds to cutting-edge exploits; they lose them to a single bad signature.
Wallet drainers trick you into granting unlimited permissions or approving deceptive transactions. Once you sign, they can repeatedly drain your funds without asking again.
The best defense is slowing down: Read every signature request carefully, especially when you see “setApprovalForAll,” “Permit/Permit2” or an unlimited “approve.”
If you’re experimenting with new decentralized applications (DApps), use a burner wallet for mints or risky interactions and keep your main assets in a separate vault. Periodically revoke unused approvals using tools like Revoke.cash — it’s simple and worth the small gas cost.
Researchers are already tracking a sharp rise in drainer-driven thefts, especially on mobile. Good signing habits break that chain before it starts.
3. Hot vs. cold: Split your spending from your savings
Think of wallets the way you think of bank accounts.
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A hot wallet is your checking account — good for spending and interacting with apps.
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A hardware or multisig wallet is your vault — built for long-term, secure storage.
Keeping your private keys offline eliminates nearly all exposure to malware and malicious websites.
For long-term savings, write down your seed phrase on paper or steel: Never store it on a phone, computer or cloud service.
Test your recovery setup with a small restore before transferring serious funds. If you’re confident managing extra security, consider adding a BIP-39 passphrase, but remember that losing it means losing access permanently.
For larger balances or shared treasuries, multisig wallets can require signatures from two or three separate devices before any transaction is approved, making theft or unauthorized access far more difficult.
Did you know? In 2024, private key compromises made up 43.8% of all stolen crypto funds.
4. Device and browser hygiene
Your device setup is as important as your wallet.
Updates patch the very exploits attackers rely on, so enable automatic updates for your operating system, browser and wallet apps, and reboot when needed.
Keep browser extensions to a minimum — several high-profile thefts have resulted from hijacked or malicious add-ons. Using a dedicated browser or profile just for crypto helps prevent cookies, sessions and logins from leaking into everyday browsing.
Hardware wallet users should disable blind signing by default: It hides transaction details and exposes you to unnecessary risk if you’re tricked.
Whenever possible, handle sensitive actions on a clean desktop instead of a phone packed with apps. Aim for a minimal, updated setup with as few potential attack surfaces as possible.
5. Verify before you send: Addresses,…
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