Crypto security: basic practices for everyday users



Crypto security describes the habits, tools and settings that help you keep your keys, accounts and devices safe from theft, scams and operator failures when using crypto. While you might often read about losses of crypto-assets, applying a set of security basic practices could prevent it. This guide explains how to keep crypto-assets safe with hardware and cold wallet options, use two-factor authentication, detect some scam patterns most common in 2026.



Key takeaways

• Protect your keys: store seed phrases offline, create backups and use a hardware or cold wallet for larger, long-term holdings. Never type a seed phrase into an unknown device.

• Secure your accounts: use app-based 2FA (not SMS) for logins, withdrawals and security changes, and turn on withdrawal allowlists and anti-phishing codes to reduce risks of account takeover

• Know the most common scams in 2026: phishing, wallet drainers and social-engineering scams. Verify domains, never share seed phrases or 2FA codes, and know the steps to take (revoke approvals, move funds, report it) if you suspect a compromise.

What is crypto security?

In simple terms, crypto security means protecting your digital assets against technical attacks, scams and human mistakes. Crypto safety has three layers:

Keys

Crypto exists on-chain, and what you hold in your wallet is the key that lets you spend the associated funds. Access comes from a public/private key pair, plus a seed phrase that lets you restore the keys. Whoever has the seed phrase can access the private key and control the funds.

Accounts

Accounts are set up whenever you manage crypto on a third-party platform such as an exchange or broker. These accounts use an email address and a password to log in. It’s encouraged to add 2FA to prevent leaked login details from letting others withdraw your funds.

Devices

Typically, whenever you buy, sell, or otherwise interact with crypto, you will do so through a hardware device, whether it’s your phone or your computer. Devices matter because you install wallets on them and use them to receive 2FA codes, so a big part of keeping crypto safe is keeping your devices updated and malware-free. While a big part of crypto security is in your hands, MiCAR in the EEA also aims to improve platforms’ security practices, and later sections turn these layers into a checklist you can follow.

Protect your private keys and seed phrases

The most important thing to remember with your private key and seed phrase is that whoever controls them can move your crypto. Losing control of either is the equivalent of losing cash. A seed phrase is a backup phrase consisting of 12 or 24 words that allows users to recover access to a private key. It’s generated when you set up a new wallet, and use the BIP-39 or other standards to generate seed phrases that is human-readable.

Best practices for keys and backups

• Use a hardware or other cold wallet for larger, long-term holdings, not a mobile or browser wallet

• Write your seed phrase down on paper or metal, keep it offline, and keep at least two copies in separate safe locations

• Where possible, add passphrases to your wallets for an extra layer of security.

• Don’t type your seed phrase or share private keys on unknown devices, whether it’s work computers or the library laptop

• For large amounts, consider a multisig setup or using professional custody



Custodial vs non-custodial: how it affects safety

In a custodial wallet, the provider manages the private key, and you are responsible for managing your accounts’ security. That means ensuring you use strong passwords and 2FA. When using a non-custodial wallet, there is no platform in between you and your private keys. When you lose the keys, you lose the funds without any backup. Neither is perfect; what works depends on your preferences, risk tolerance and how you want to use crypto in your everyday life.

Lock down your accounts for better crypto security

Losses can also come from account takeovers, not just stolen keys. When you use a service provider for crypto, turn on two-factor authentication for logins. Since SMS may be vulnerable to SIM-swap attacks, use an authenticator app instead.

Account security features to turn on

• Use 2FA not only for login but also for withdrawals, password changes and security changes

• Turn on the withdrawal allowlist so funds can only be withdrawn to pre-approved addresses

• Set up an anti-phishing code, a phrase you pick that the platform will include in all genuine emails

• Use IP allowlist if offered and practical, especially if you login from the same location



Password and recovery hygiene

• Use unique, strong passwords for each email, exchange and wallet account

• Secure your recovery email (password and separate 2FA)

• Avoid linking high-value accounts to phone numbers that are publicly available



Simple 2FA setup checklist

• Install a trusted authenticator app

• Add accounts and write down your backup codes, store them offline

• Turn on 2FA for login, withdrawals and security changes

Spot the common crypto scam patterns (2026)

As technology evolves, so do scam patterns. Vigilance is key. Many scams don’t exploit code but target human behavior and create urgency that leads to mistakes. One of the best crypto safety tips is to slow down and think before you act.

Phishing, smishing and vishing

Phishing uses fake sites or emails that copy real brands to steal your login or seed phrase; smishing uses SMS and vishing uses phone calls.

How to spot and avoid them:

• Check domains carefully, bookmark official domains for exchanges and wallets you use

• Be cautious when receiving unexpected texts and calls about “security issues” or “urgent withdrawals.”

• Never share your passwords, 2FA codes or seed phrase over email, phone or SMS

Wallet drainers

A wallet drainer, also called an approval scam, is a malicious smart contract that gets approval to access your wallet, often through fake airdrops, mints or claim pages. If you are unsure which dApps have approvals, you can use a token approval revoke tool to review and remove old or suspicious approvals. Be wary of free mints or airdrops from unknown projects and always check domains before connecting your wallet.

Address spoofing, dust attacks and SIM swaps

Address spoofing is when scammers use addresses that look similar to a known address to trick users into copying and transferring funds. To avoid it, use withdrawal allowlists and keep an address book.

Another common attack is a dust attack, where scammers send small amounts of tokens to many users to track and bait them. The best course of action is to ignore it and not connect to ‘cleaner’ sites.

When attackers convince a mobile provider to move a phone number to their SIM, it’s called a SIM-swap attack. Guard against this by keeping your number as private as possible and using 2FA apps instead.

Fake giveaways, impersonation and social engineering

Scammers will also use fake giveaways and impersonation to pose as an exchange, influencer or support offering rewards or help. These scams fall under social engineering, where attackers use trust, fear and urgency to push people to act.

Tips to stay safe:

• Real support will never ask for passwords, 2FA codes or seed phrases

• Check verified channels and compare usernames carefully

• Be skeptical of all “too good to be true” offers

Choose a safer venue: what to look for in an exchange

No platform is risk-free, but some features can reduce the chances or impact of failures.

Here’s a checklist of basic features to guide you:

• MiCAR-licensed: this shows the exchange meets legal standards in the EEA

• Client-asset segregation: users’ assets are kept separate from company funds

• Proof of reserves with third-party audits and regular transparency reports

• Support for app-based 2FA, withdrawal allowlists, anti-phishing codes

• Clear complaint and incident reporting process

In the EEA, MiCAR helps raise minimum platform safety standards, but it does not remove market or personal security risks.

Bottom line

The three most impactful things you can do to keep your crypto safe are keeping keys and recovery phrases offline, storing larger amounts in cold storage and securing exchange accounts with 2FA and strong passwords.

Before signing any transaction or sending funds, slow down, check the details and keep common scam patterns in mind. Crypto security best practices reduce risk but cannot remove it, so staying informed is part of the crypto journey.

FAQ

How do I keep my crypto-assets safe?

To keep your crypto safe, use hardware or other cold wallets for storing larger amounts long-term. Use app-based 2FA rather than SMS to secure exchange and email accounts. Pick strong, unique passwords and store them in a reputable password manager. Before sending funds or signing transactions, double-check and be aware of common scam patterns to avoid falling for them.

How do I avoid crypto scams?

The best way to avoid crypto scams is to be cautious with unexpected messages that create urgency and try to lower your guard. Double-check URLs, email addresses and wallets before sending funds. Never share your seed phrase or 2FA codes with anyone else. Regularly remove approvals for dApps you no longer use, and review approvals carefully before signing transactions.

How does 2FA protect my assets?

2FA protects your crypto by adding a second layer of security on top of your password, making it harder for attackers to access your account even if they know your login details. App-based 2FA is preferable since SMS is vulnerable to SIM swaps. By turning on 2FA for logins, withdrawals and security changes, you reduce the risk of account takeovers.

Is using a password manager safe for crypto?

Using a password manager can improve security by helping you manage unique passwords. The master password and device you use it on must be well protected. Note that password managers are for passwords, not for long-term storage of seed phrases or private keys. Private keys and seed phrases should stay offline and never be shared.



Investing in crypto‑assets is associated with risks, including high volatility and the potential loss of capital. Inform yourself thoroughly about the risks before making an investment decision. The information provided in this article is strictly for educational and informational purposes and should not be construed as financial or investment advice.