Your hardware wallet is only as safe as the computer it connects to. If your computer is compromised, even the best cold wallet cannot fully protect you — because the transaction details displayed on your screen may not match reality.
Here is how to make sure your computer is ready for crypto.
Step 1: Keep Your Operating System Updated
Every OS update includes security patches. Windows, Mac, and Linux all regularly fix vulnerabilities that malware exploits. Enable automatic updates and never delay them.
Check now: Windows → Settings → Update & Security. Mac → System Settings → Software Update.
Step 2: Install and Maintain Antivirus Software
Antivirus is not optional for crypto users. Clipboard malware, keyloggers, and remote access trojans are real threats that antivirus software is designed to catch.
Choose a reputable antivirus with real-time protection, web filtering, and regular updates. We recommend ESET for its consistently high detection rates and low system impact.
🔒 Get ESET Smart Security — Comprehensive protection for your devices
Step 3: Audit Your Browser Extensions
Browser extensions have broad permissions and can read everything on your screen, including crypto addresses and login credentials. Malicious extensions have stolen millions in cryptocurrency.
Right now: Go to your browser’s extension page and remove anything you do not recognize or no longer use. Keep only essential extensions from trusted developers.
Step 4: Use a Dedicated Browser for Crypto
Consider using a separate browser (or at minimum a separate browser profile) exclusively for cryptocurrency activities. No other extensions, no casual browsing, no social media. This dramatically reduces your attack surface.
Step 5: Secure Your Network
Never make crypto transactions on public Wi-Fi. Coffee shops, airports, hotels — these networks are easily monitored or spoofed by attackers.
Use your home network with a strong, unique Wi-Fi password. If you must use an untrusted network, use a VPN.
Step 6: Disable Remote Access Software
TeamViewer, AnyDesk, Chrome Remote Desktop — if you are not actively using remote access software, uninstall it or at minimum disable it before crypto transactions. These tools give anyone with access full control of your computer.
Step 7: Check Your Clipboard
Before and after copying a crypto address, verify it. Copy the address, paste it somewhere you can see it, and confirm it matches the original. This catches clipboard malware.
The Complete Pre-Transaction Routine
All of these steps (and more) are built into our free checklist:
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