Crypto security comes down to a few hard rules. This guide covers the Nigerian-specific threats (clipboard malware, SIM swap, social engineering) and the practical defences.
By the end you'll have a security checklist that closes the most common attack vectors.
What's in this guide
1. Strong app passwords
Use unique passwords per app. Password manager (Bitwarden, 1Password). 2FA on everything that supports it.
2. SIM swap protection
SIM swap is a meaningful Nigerian threat. Use authenticator apps (Google Authenticator, Authy), not SMS-based 2FA where possible.
3. Self-custody for large amounts
For ₦5M+ holdings you don't actively trade, hardware wallet (Ledger, Trezor). Seed phrase on metal, not paper, not screenshot, not cloud.
4. Clipboard malware
Malware that swaps copied addresses for attacker addresses. Always use in app copy buttons; verify the first and last 6 characters of pasted addresses.
5. Phishing
Bookmark monica.cash. Don't click 'support' links from random sources.
FAQ
Is Monica self-custody?
No Monica is custodial. For large self-custody, use a hardware wallet.
Is 2FA enough?
Helpful but not sufficient combine with strong password and authenticator app.
Seed phrase storage?
Metal, offline, never digital.