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Security in the Crypto Space

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Security

Whether it’s Bitcoin, Ethereum, or other coins—anyone active in the crypto space should make security their top priority. Cryptocurrencies offer financial freedom, but they also come with their own risks. Unlike with a bank, there is no customer support to reset lost passwords or reimburse stolen funds. In this article, you’ll learn what dangers lurk in the crypto space and how you can effectively protect yourself and your digital assets.

Häufige Risiken im Kryptospace

Unfortunately, the world of cryptocurrencies also attracts criminals. Newcomers often underestimate the dangers they face. Here are some of the biggest risks:

Fraud and Scams

Fraudsters often target inexperienced crypto users. Phishing websites, for example, mimic popular exchanges or wallet apps to steal login credentials or private keys. Fake profiles on social media posing as support staff are also a problem. Popular crypto scams include fake giveaways (“Send 1 BTC and get 2 back”) or fraudulent investment platforms promising high returns. Anyone who falls for these offers will most likely never see their money again.

Attention: Many scammers try to obtain your private keys with fake websites or support requests. Never share your wallet passphrase or private keys with anyone!

Hacking Attacks

Not only individual users but also large crypto exchanges are targeted by hackers. In recent years, there have been repeated incidents where exchanges were hacked and millions were stolen. If a platform isn’t sufficiently secured, attackers can steal customer funds. But individual users can also fall victim to malware: Hackers use keyloggers or special malware to steal passwords or wallet files (for example, from desktop wallets). A compromised computer can mean your coins are stolen without you even noticing right away.

Fun Fact: The first documented purchase transaction with Bitcoin took place on May 22, 2010. On this “Bitcoin Pizza Day,” a developer paid for two pizzas with 10,000 BTC. That amount would be worth several hundred million euros today!
Fun Fact: Die erste dokumentierte Kauftransaktion mit Bitcoin fand am 22. Mai 2010 statt. An diesem "Bitcoin Pizza Day" bezahlte ein Entwickler zwei Pizzen mit 10.000 BTC. Diese Menge wäre heute mehrere hundert Millionen Euro wert!

Users Mistakes

It’s often not fraudsters or hackers, but simple user errors that lead to the loss of cryptocurrencies. A classic example is losing your private key or recovery phrase. If you don’t make a backup of your keys (e.g., if you only store them on your PC and it breaks), you could lose access to your funds forever. Accidentally sending coins to the wrong address can also have fatal consequences—transactions are irreversible, and “recalling” them is virtually impossible. So always double-check before sending coins and keep a clear head.

Secure Storage of Cryptocurrencies

Perhaps the most important aspect for crypto investors is the safe storage of their coins. Unlike cash, you can’t simply put Bitcoin & Co. into a wallet. Instead, you manage a digital key that gives you access to your coins. Whoever has this key controls the balance—regardless of whether they are the legal owner. This is where wallets come in.

Hardware-Wallets

For maximum security, hardware wallets are considered the gold standard. These are physical devices that store your private keys offline. Examples include the Ledger Nano or Trezor. Because a hardware wallet is not constantly connected to the internet, hackers have almost no chance of accessing your keys. You operate it using buttons on the device and a companion app. Even if your computer is infected with viruses, the keys remain safe on the device.

Drawbacks include the one-time purchase cost and the need to keep the device safe, like a physical key. But for larger amounts, this investment is absolutely worth it. (Tip: A proven hardware wallet from a trusted provider offers top security—check out this recommendation.)

Software-Wallets

Software wallets are programs or apps that run on your computer or smartphone. They’re often free and very convenient to use. However, they store the keys digitally on your device, so security depends heavily on your system. A good software wallet encrypts sensitive data, and some also offer two-factor authentication.

Still, if your device is infected with malware or hacked, your coins could be at risk. So you should use as clean a device as possible (ideally dedicated for this purpose) and regularly update your software. Mobile wallets are convenient for everyday use, but you should keep larger amounts elsewhere.

Backups and Recovery

Many users initially keep their coins on the crypto exchange where they bought them. But online platforms are attractive targets for attackers, and in an emergency your funds there are at risk. Here are some measures everyone should follow:

Choose a Secure Platform

Not all trading venues are equally secure. Make sure you use a reputable exchange with high security standards. Good exchanges keep most customer funds in offline wallets (cold storage), have insurance against hacks, and undergo external security audits. Read reviews and don’t hesitate to trust a well-known, regulated provider over an unknown platform just because it charges 0.1% less in fees.

Secure Your Account (2FA & Strong Passwords)

Protect your exchange access like your most precious asset. Use unique, strong passwords for your account (ideally with a password manager). Always enable two-factor authentication (2FA)—for example, with an app like Google Authenticator. That way, even if your password is stolen, logging in won’t be easy. Many exchanges also let you restrict withdrawals (e.g., only to predefined addresses) or require additional confirmation for new devices. Use these features when available. And above all: Don’t fall for phishing emails that try to lure you to fake login pages (see above).

Better to Keep Coins in Your Own Wallet

The most important rule: Don’t keep large amounts on the exchange long-term! As convenient as online wallets are—if the platform is hacked or suddenly shuts down (think FTX 2022), your coins are gone. Transfer coins you don’t plan to trade soon to your own wallet, where you have control—not your keys, not your coins! A proven strategy is to keep only the amount X on the exchange that you actively want to trade. The rest should be under your own control.

Conclusion

Security in the crypto space isn’t rocket science, but it does require conscious action. Unlike in the traditional banking system, every user here is fully responsible for their digital assets. The good news: With the right precautions, you can greatly reduce your risk. Combining hardware wallets, 2FA, backups, and common sense creates an effective shield against most dangers. Anyone who informs themselves and follows best security practices can enjoy the world of cryptocurrencies with much more peace of mind. It’s worth going the extra mile for security—not only to protect your investments but also the future of your trust in crypto technology. Buy a Hardware-Wallet

Patrick Wagner

Patrick Wagner

Co-Founder / CTO