If you are new to cryptocurrency, October 2024 might seem like a scary time. Headlines about $88 million stolen from crypto platforms, a $53 million hack on a lending protocol called Radiant Capital, and warnings about wallet security are flooding your news feeds. But before you panic, let us break down exactly what happened, what it means for your investments, and — most importantly — what you can do right now to protect yourself. With Bitcoin trading around $67,000 and Ethereum near $2,480, crypto remains an exciting but risky space, and understanding these risks is your first line of defense.
The Basics
Decentralized finance, commonly called DeFi, refers to financial services built on blockchain technology. Instead of banks or brokerages, DeFi uses smart contracts — self-executing programs on the blockchain — to handle lending, borrowing, trading, and earning interest. Platforms like Radiant Capital, Aave, and Compound allow users to deposit their crypto and earn yields, or borrow against their holdings without filling out paperwork or waiting for approval.
Here is the catch: smart contracts are code, and code can have vulnerabilities. More importantly, the systems around smart contracts — like the multisig wallets that control protocol upgrades and the private keys that authorize transactions — can be compromised by attackers. When these systems fail, user funds can be stolen.
In October 2024, blockchain security firm PeckShield reported that approximately $88.47 million was lost across 20 separate hacking incidents in the crypto sector. The single biggest attack targeted Radiant Capital on October 16, where attackers stole $53 million by compromising the multisig wallet that controlled the protocol’s contracts.
Why It Matters
You might be thinking, “I do not use Radiant Capital, so why should I care?” The answer is that these incidents reveal systemic weaknesses that affect the entire crypto ecosystem. When a major protocol is hacked, it erodes trust in all DeFi platforms. It can trigger market sell-offs that affect the value of your holdings, even if you never used the compromised platform.
Furthermore, the techniques used in these attacks — compromised private keys, social engineering, malicious smart contract approvals — are the same techniques that target individual users, just at a smaller scale. Understanding how protocols get hacked helps you understand how your own wallet could be targeted.
The October attacks also highlight the regulatory attention that crypto is attracting. As governments worldwide develop stricter rules for crypto platforms, users may see changes in how services operate, including mandatory security audits, insurance requirements, and reporting obligations. Being informed now helps you adapt to these changes later.
Getting Started Guide
Protecting your crypto does not require a computer science degree. Here are five practical steps every beginner should take immediately.
First, move your crypto off exchanges and into a hardware wallet. A hardware wallet is a physical device — like a USB stick — that stores your private keys offline. Brands like Ledger and Trezor are widely used and well-reviewed. When your keys are offline, hackers cannot steal them through malware, phishing, or exchange breaches. This single step eliminates the majority of attack vectors that cause individual losses.
Second, never share your seed phrase with anyone, ever. Your seed phrase — the 12 or 24 words you received when setting up your wallet — is the master key to all your crypto. No legitimate service, support team, or protocol will ever ask for it. If someone asks for your seed phrase, it is a scam. Write it down on paper and store it in a secure location, preferably a fireproof safe or a bank deposit box.
Third, be cautious about which protocols you interact with. Before connecting your wallet to any DeFi platform, check whether it has been audited by reputable security firms like Trail of Bits, OpenZeppelin, or Consensys Diligence. Look for audit reports on the protocol’s website. If a platform cannot provide audit documentation, treat it as high-risk.
Fourth, understand what you are approving when you sign a transaction. When a dApp asks you to approve a token spend or contract interaction, it may be requesting permission to access all of that token in your wallet — not just the amount you intend to use. Tools like Revoke.cash can help you review and revoke unnecessary approvals.
Fifth, enable all available security features on your exchange accounts. Two-factor authentication using an authenticator app (not SMS) should be mandatory. Whitelist your withdrawal addresses so that even if your account is compromised, funds can only be sent to addresses you have previously verified.
Common Pitfalls
New crypto users frequently fall into several traps that are entirely preventable. The most common is storing significant funds on exchanges. While exchanges like Coinbase and Binance are convenient, they hold your private keys, meaning you do not truly own your crypto. The collapse of FTX in 2022 demonstrated that even major exchanges can fail, and when they do, users who left funds on the platform lost everything.
Another pitfall is chasing unrealistic yields. If a DeFi protocol is offering 50 percent, 100 percent, or higher annual percentage yields, the risk is almost certainly proportionate to the reward. These high yields often come from unsustainable token emission models or outright Ponzi schemes. The October 2024 data shows that rug pulls — where project developers abandon and steal investor funds — totaled $45.7 million, primarily from new and unregulated DeFi projects.
Phishing attacks are increasingly sophisticated. Attackers create fake websites that closely mimic legitimate crypto platforms, complete with identical logos, layouts, and URLs that differ by a single character. Always verify URLs carefully, bookmark the legitimate sites you use regularly, and never click links from unsolicited emails or social media messages.
Next Steps
Once you have implemented the basic security measures above, consider deepening your knowledge. Learn to read smart contract addresses so you can verify you are interacting with the correct contract before signing transactions. Explore multi-signature wallets like Safe (formerly Gnosis Safe) for shared fund management. Stay informed about security incidents by following blockchain security firms like PeckShield, Trail of Bits, and CertiK on social media.
The crypto ecosystem is still in its early stages, and security practices are evolving rapidly. What counts as adequate security today may be insufficient tomorrow. The users who thrive in this environment are those who treat security as an ongoing practice rather than a one-time setup. Start with the basics, build good habits, and stay curious. The $88 million lost in October 2024 was largely preventable — make sure your funds are not part of the next headline.
Disclaimer: This article is for informational purposes only and does not constitute financial advice. Always conduct your own research before making investment decisions.
as a newbie this is actually super helpful. had no idea what multisig meant before reading this. scary stuff but good to know
welcome to crypto lol. multisig is just requiring multiple people to approve a transaction. the Radiant hack happened because someone compromised one of the multisig signers
the Radiant multisig was 3-of-3, meaning the attacker needed all three signers compromised. they pulled it off through social engineering, not a code exploit. the human element remains the hardest to secure
Solid explainer. The key takeaway should be: never keep more on any single DeFi protocol than you can afford to lose overnight.
this is the advice i wish someone gave me before i lost funds on Celsius. one protocol, gone overnight. diversify across multiple platforms or just cold storage
this should be pinned to every DeFi landing page. instead protocols advertise audited by X like that means anything after watching audited protocols get drained repeatedly
the part about smart contract risk vs operational risk is what most beginners miss. its not always the code that breaks, sometimes its the people running it