Your wallet:
a silent alarm
under duress.
Wallert is an open-source duress alarm for crypto holders. It monitors a dedicated wallet and alerts your trusted contacts if you're forced to transfer funds.
Monitored
Security wallet
0x8a...c9b2 · ETH
Detected
Outgoing transfer
Signal triggered instantly
Alerted
Trusted circle notified
Threat
Hardware wallets protect your keys.
Nothing protects you.
Physical attacks on crypto holders are rising worldwide. When someone breaks into your home and threatens you with a weapon, you have seconds to act, no way to call for help, and no one knows you're in danger.
Wallert exists so that, in those seconds, someone knows and can act.
The attacker
sees a transfer.
Your circle
receives an alarm.
How it works
Three steps. No complexity.
Security wallet
Set aside a credible amount on a dedicated wallet, separate from your real holdings. This address is placed under continuous surveillance. It becomes your emergency trigger.
Trusted circle
Define your emergency contacts, alert channels (email, Telegram), and exact instructions. What should they do? Call police? Contact SEAL 911? You decide in advance.
Silent signal
Transfer from the watched wallet under duress. Your network receives an instant alert with your instructions, and acts. Alerts resend every 5 minutes until confirmed.
Features
Simple to configure.
Unlimited wallets
Monitor as many addresses as needed. Each wallet is tracked independently.
Multi-channel
Email and Telegram simultaneously. Multiply the chances someone gets through.
Emergency instructions
Write precise directives: who to call, what to say, what to do with the transaction hash.
Instant detection
On-chain monitoring via Alchemy. The alert fires the moment the transaction is broadcast.
Persistent alerts
Alerts repeat every 5 minutes until a contact confirms they've acted. No message gets lost.
Test mode
Simulate a full alert before going live. Confirm every contact and channel works.
Why it exists
I've seen both sides.
I am Rémi D'Alise. 6 years as Head of Product at Ledger. I know what hardware wallets protect, and what they don't.
Since 2024, I've been helping crypto holders secure their funds. As the physical threat is real and growing, I built Wallert first for myself. Then for everyone.
"When you're under threat, the only thing that matters is that someone knows. Wallert's purpose is to break the silence as fast as possible."
The best solution is often to remove yourself from the equation entirely: no easy access to your funds. But not everyone can make that choice.
For those who hold directly: this is a safety net. Not a guarantee. An extra layer that costs nothing to activate, and could matter when nothing else does.
⚠ Wallert does not prevent attacks or theft. It's designed to alert your trusted circle as quickly as possible. Whether that changes the outcome depends on many factors outside our control.
Privacy & Security
Designed to leave no trace.
A security tool must not become a risk vector. Wallert is built to minimize exposure, even in a compromise scenario.
Anonymous by design
Register with a non-nominal email. No link between your identity, your Wallert account, and your real funds.
Isolated wallet
The monitored wallet should be dedicated and separate. Make sure it can't be traced back to your main holdings.
Open source & self-hostable
Full code transparency. Run your own instance if you need complete control over your data.
View on GitHub →Private infrastructure
Dedicated server in France (Scaleway), isolated container, DDoS protection via Cloudflare.
Get started
Set it up once.
Hope to never use it.
Takes 5 minutes. Then you don't think about it anymore.
Try Wallert