Non-custodial Lightning security for serious balances. Off-node keys + full validation = a compromised node can’t steal funds Open source Rust SDK. vls.tech
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Come ask us anything!
STARTING NOW: Stacker News AMA with @VLSProject
Bring your lightning security questions!
stacker.news/items/1584228
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Fun fact: not even Ethan Hunt can break into VLS.
Source: he tried and failed.
Mission impossible indeed.
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If you run Lightning for real money the million dollar question is:
“If my node gets owned tonight, what stops the bleeding?”
“We’re non-custodial,” is not an answer.
If the answer is “signing policy is enforced outside the node,” now you’re talking.
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Blind signing turns any node bug into a funds bug.
Validation turns node bugs into blocked requests.
Here's VLS denying an attacker trying to drain your funds:
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Wallets love to say “you hold the keys.”
But if their node is in charge, you’re not holding custody.
You’re holding an illusion.
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Every transaction the node proposes must pass a protocol-correctness exam.
VLS wrote the exam and grades on an unforgiving curve.
No bell curve. Not on our watch.
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Regulatory playbook:
- stay out of custody
- log everything
- secure user funds
VLS helps check each box.
So what are you waiting for?
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Lightning adoption plateaus if people fear hot wallet meltdowns.
Validated signing restarts momentum.
It’s kinda a big deal.
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"Non-custodial" Lightning wallet is cool.
But not if it achieves that by blindly signing whatever the node asks for.
That’s only "non-custodial" in theory, not in practice.
We don’t make the rules.
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If your roadmap includes "build secure signer"
consider deleting that task and `git clone` VLS instead.
Ship features, leave the security to us.
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Exchanges:
offer instant Lightning withdrawals without adding assets to your balance sheet.
VLS keeps you non-custodial.
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Bigger channel caps unlock bigger revenue, but only if you trust your security.
VLS gives the green light to grow.
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Lightning Service Providers:
upgrade from “trust me bro” to “user holds keys, signer enforces rules.”
Customers will notice.
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Good UX is spending from your phone.
Good security is your phone being unable to cheat.
VLS keeps both truths in harmony. 📱✨
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Rolling out Lightning in a new region?
Staying non-custodial with VLS sidesteps a mountain of financial regulation.
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Merchants moving sats each second cannot wait for cold storage rituals.
VLS grants hot-channel speed with cold-storage level security.
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Compliance team asking about custody licenses?
Hand them a diagram of how VLS works: keys stay with users, signatures require validation.
Discussion over.
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Blind signing = “sure, I’ll sign whatever.”
VLS = “prove you played by the rules.”
Pick your guardian wisely.
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Most Lightning apps today are fast, but custodial.
VLS is for people who want fast and sovereign.
Keys stay off-node.
Every transaction is validated.
Your sats, your rules.
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The real security unlock for Lightning isn’t just taking the keys off-node.
It’s validating every transaction before signing.
VLS does both.
Blind signers do neither.
Choose wisely.
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Unpopular opinion:
If your Lightning startup can’t explain its custody model in one sentence, you’re not ready to raise.
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Most Lightning apps are one mistake away from zero.
Why?
→ Node gets hacked
→ Node or blind signer signs the attacker’s transaction
→ You lose everything
VLS says "no" to invalid or malicious requests, even from your own node. 🛡️
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On Lightning, Blind signing sounds safer (your keys aren’t on the node)…
But if your signer just signs everything the node asks for, you’ve gained nothing.
Worse, you’ve doubled your risk surface.
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Runs hot wallet on your Lightning node:
🔥 “This is fine.”
Node gets hacked, funds gone:
💀 “Why didn’t anyone tell me this was possible??”
VLS:
✅ “Actually validates transactions before signing.”
Run serious liquidity? Time to stop yoloing.
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Exciting news from VLS!
We've just launched our latest release v0.11.0 "Auspicious Anubis" 👀
It comes with groundbreaking tag-team signing support and dockerized VLS. 😮
What is tag-team signing you ask?
Great question!
Find out here: vls.tech/posts/beta-3
🫡
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Dying to ask the VLS team a question?
Wondering how VLS works or where to get started?
Join us Thursday July 13th @ 8am PST/11am EST on @stacker_news for an AMA with the VLS team (AUA?)
Best question gets 100 sats and bragging rights! 😎
@devrandom01 @ksedgwic @JackRonaldi
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Bear market got you down?
We've got a prescription, and it isn't more cowbell!
Help the VLS team build better Bitcoin lightning network security ⚡️🧡
For ways to get involved, check out vls.tech/#GettingStarted or reach out to @JackRonaldi
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Oh hello. Did someone say they wanted to talk with the VLS team? We love to see all this attention 🧡
Join our Matrix chat to chat more: matrix.to/#/#vls:matrix.org
Will also shoot you a DM to see how we can help 🙂
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