How secure is your Bitcoin, really?
Answer a few questions about how you hold your Bitcoin. You'll get a personalized security score, a check against known hardware-wallet advisories, and a prioritized list of what to fix first — all computed in your browser.
1What do you use to hold your Bitcoin?
2A quick note on exchange custody
- If you decide to self-custody, come back and select "hardware wallet" or "software wallet" above to get a personalized checklist.
- If you stay on an exchange, use a unique password, hardware-based two-factor authentication (not SMS), and withdrawal address allow-listing where available.
2Tell us about your hardware wallet
2Tell us about your software wallet
3Your security habits
Check everything that's true for you today — be honest, this is just for you and nothing is recorded.
✓Your results
!What to fix first
How it works
A few questions, one clear score.
Tell us your setup
Hardware wallet, software wallet, both, or exchange-only — the checklist adapts to what you actually use.
Walk through the checklist
Backup, seed secrecy, firmware hygiene, advanced protection, and contingency planning, in plain language.
Get your score & fix list
See a 0–100 security score with a prioritized list of what to fix first, plus any known device advisories.
Why use this checker
Runs entirely in your browser
Your wallet type, brand, and checklist answers are never transmitted, logged, or stored.
Personalized to your setup
Hardware, software, or both — the questions and scoring adapt to what you actually use.
Known-advisory cross-check
Flags whether your device and seed age fall into a disclosed hardware wallet advisory window.
Prioritized fix list
Unaddressed items are ranked by impact, so you know what to fix first, not just what's missing.
Five security categories
Backup & recovery, seed secrecy, firmware hygiene, advanced protection, and contingency planning.
Free, no sign-up
No account, no limits, works for any wallet type or brand.
Understanding Bitcoin wallet security
Why good intentions aren't the same as a good setup, and what actually reduces risk.
Self-custody means you are the bank
Holding your own Bitcoin removes counterparty risk — no exchange can freeze, lose, or mismanage funds you control yourself. But it also removes the safety net: there's no customer support line if a seed phrase is lost, damaged, or exposed. Security becomes entirely a function of your own habits and setup.
Why backups fail silently
A recovery seed that has never been tested is an assumption, not a backup. Metal or paper copies degrade, get misplaced, or turn out to have a transcription error that only surfaces during an actual restore — often after the original device is already gone. Testing a restore once, on a spare device, is what turns a backup from a hope into a fact.
The weak-randomness problem
Occasionally a hardware wallet vendor discloses a firmware issue where seeds were generated with predictable rather than truly random data. When that happens, no amount of good day-to-day habits fixes it — the fix is updating firmware and migrating to a freshly generated seed. That's why this checker asks about your device and roughly when your seed was created, separately from the general checklist.
What actually helps
- Keep a physical backup of your seed in more than one secure location, and test restoring from it at least once.
- Never type, photograph, or store a seed phrase on any internet-connected device.
- Keep wallet firmware and apps updated, and verify addresses on the device's own screen before trusting them.
- For meaningful balances, consider multisig so no single device or backup is a single point of failure.