Pinned Tweet
feeling grateful for the recognition 🙏
we’re working on more specialized and more focused ways to secure onchain interactions
onwards 🚀
we’re working on more specialized and more focused ways to secure onchain interactions
onwards 🚀
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The Chainwall CLI available on @arbitrum
Make your onchain stack right from Day One:
prompt your coding agent to set up Chainwall instance, smart accounts, create users, policies, onchain catalog, and timelocks.
github.com/okcontract/cha…
Make your onchain stack right from Day One:
prompt your coding agent to set up Chainwall instance, smart accounts, create users, policies, onchain catalog, and timelocks.
github.com/okcontract/cha…
This week on Arbitrum:
> @crossriverbank is building its tokenized lending platform on Arbitrum One (architected by @Offchain’s Enterprise Services team)
> Robinhood Chain reaches $100B+ in volume on @Uniswap
> $USDG lending on @Morpho reached $143M on Arbitrum One
> SBI Digital Mark@EmberProtocol to tokenize and distribute real-world assets on Arbitrum
> Meet the winning teams that took their apps to market on Arbitrum One and Robinhood Chain at Founder House Singapore (@fablesfi, @atoma_fi, @KurtosisLabs, @okcontract, @hyperloop_fi_, @stockripx, @VexiProtocol, @tawffoundation, @zona_io, @krsi_xyz , @YuzuMoneyX, @kiteapp_xyz, Moneyness)
> Users can now send, deposit and check balances privately with @NullMaskio on Arbitrum One
> New perp market (Internet Meltdown) has arrived on Arbitrum One via @perpdotcity
> $USDG supply surged from ~$1.5M in early October to nearly $17M on @GMX_IO (10x growth in less than a month)
> @OrderlyNetwork now support $USDG as collateral on Arbitrum One
> @aeroxyz reached the #2 DEX on Arbitrum One
> @whatthehookv4 brings their cross-pool arbitrage platform to Arbitrum One
> @Zyfai_ now supports $USDG on Arbitrum One
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Incredible experience building alongside great founders at Founder House Singapore.
Thanks for Chainwall recognition.
Excited for what's ahead on @arbitrum.
Still early. Lots more to ship. 🚀
Thanks for Chainwall recognition.
Excited for what's ahead on @arbitrum.
Still early. Lots more to ship. 🚀
Congratulations to all the winners at Founder House Singapore
Hear from @atoma_fi, @stockripx, @KurtosisLabs, Chainwall, @hyperloop_fi_ and @tawffoundation about bringing their products to the Arbitrum Platform and how Founder House supported them along the way
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Today at @EFDevcon our cofounder announced initial work on the verification of oksolc in Lean
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OKcontract Labs | Chainwall retweeted
As our team is at Devcon, oksolc 0.2.4 is out!
Fixed tuple typing, abi.decode with string and hex literals, and Yul JSON round-trips. More memory-leak fixes and optimizer hardening, too.
Expect big news in our Devcon talk tomorrow:
x.com/okcontract/sta…
Fixed tuple typing, abi.decode with string and hex literals, and Yul JSON round-trips. More memory-leak fixes and optimizer hardening, too.
Expect big news in our Devcon talk tomorrow:
x.com/okcontract/sta…
If you are at @EFDevcon tomorrow and want to learn how you can speed up your Solidity compilation time, check out:
🎤 "oksolc, a Solidity compiler in Zig" talk by OKcontract cofounder @hbbiok
📅 Wed, Nov 4 15:20
📍Lightning stage, Mumbai
app.devcon.org/schedule/oksol…
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If you are at @EFDevcon tomorrow and want to learn how you can speed up your Solidity compilation time, check out:
🎤 "oksolc, a Solidity compiler in Zig" talk by OKcontract cofounder @hbbiok
📅 Wed, Nov 4 15:20
📍Lightning stage, Mumbai
app.devcon.org/schedule/oksol…
🎤 "oksolc, a Solidity compiler in Zig" talk by OKcontract cofounder @hbbiok
📅 Wed, Nov 4 15:20
📍Lightning stage, Mumbai
app.devcon.org/schedule/oksol…
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OKcontract Labs | Chainwall retweeted
Attending @EFDevcon next week? Meet OKcontract team in Mumbai.
Our cofounder Henri Binsztok will give a talk about oksolc, a Solidity compiler in Zig released by OKcontract Labs.
📅 Wed, Nov 4 15:20
📍Lightning stage, Mumbai
Our cofounder Henri Binsztok will give a talk about oksolc, a Solidity compiler in Zig released by OKcontract Labs.
📅 Wed, Nov 4 15:20
📍Lightning stage, Mumbai
oksolc 0.2.3 is out!
Fixed callback deadlocks, memory leaks, and a watch-mode bug that could overwrite its input. Faster dependency tracking on shared imports, too.
Still targeting solc 0.8.36, with the same bytecode 🙂
github.com/okcontract/oks…
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Attending @EFDevcon Mumbai? Curious to learn more about oksolc Solidity compiler?
OKcontract cofounder @hbbiok will share more details in his talk at Devcon Security Hub hosted by @thedaofund
📅 Thu Nov 4, 14:50
📍 Security Hub, Devcon
Event map: app.devcon.org/schedule/secur…
OKcontract cofounder @hbbiok will share more details in his talk at Devcon Security Hub hosted by @thedaofund
📅 Thu Nov 4, 14:50
📍 Security Hub, Devcon
Event map: app.devcon.org/schedule/secur…
The Security Hub sessions kick off tomorrow at 12 PM at @EFDevcon!
We've got four days of talks, workshops, and discussions with some incredible people working on Ethereum security.
We've put together the full lineup, with times and speakers for every session.
Bookmark this da handy throughout Devcon.
See you at the Hub!
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Chainwall is honored to share 🥉 3rd place of the general track among so many great builders!
During the Open House, Chainwall CLI was released on @arbitrum chain to help developers build safer stacks and protect privileged onchain operations from internal and external threats.
Huge thanks to @ArbitrumDevs team for the mentorship, recognition, prize, and support throughout the Open House.
Let's make operations on Arbitrum safer!
github.com/okcontract/cha…
During the Open House, Chainwall CLI was released on @arbitrum chain to help developers build safer stacks and protect privileged onchain operations from internal and external threats.
Huge thanks to @ArbitrumDevs team for the mentorship, recognition, prize, and support throughout the Open House.
Let's make operations on Arbitrum safer!
github.com/okcontract/cha…
First up: General Track.
From RWAs to consumer products, the winning teams showcased a range of ideas pushing the boundaries of what’s possible with onchain products.
🥇 1st Place ($60k): @atoma_fi - Market-neutral RWA yield layer for tokenized stock perps on Arbitrum and Place ($40k): @KurtosisLabs - Layer-by-layer risk ratings for onchain yield positions
🥉 3rd Place ($20k): shared by @okcontract who is building a self-custodial control layer protecting onchain operations from internal and external threats and WageFlow who is building a programmable settlement and liquidity network for wage-linked finance.
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🚀 Exciting news!
Chainwall contracts are now publicly available!
@hbbiok announced this today during his talk at @summit_defi in Mumbai @EFDevcon.
The repository contains:
- the Registry for authorized users, groups, policies, catalog, contracts, and actions management,
- the rifies each action against current policy before execution,
- timelocked governance for sensitive changes.
Try it. Drop a star if you find it useful.
github.com/okcontract/cha…
Chainwall contracts are now publicly available!
@hbbiok announced this today during his talk at @summit_defi in Mumbai @EFDevcon.
The repository contains:
- the Registry for authorized users, groups, policies, catalog, contracts, and actions management,
- the rifies each action against current policy before execution,
- timelocked governance for sensitive changes.
Try it. Drop a star if you find it useful.
github.com/okcontract/cha…
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Teams operating treasuries, vaults, protocol administration or automated signers: we would value your review. Issues and discussion on GitHub, or join the community at t.me/okcontractoffi…
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Attending @EFDevcon in Mumbai?
OKcontract cofounder @hbbiok will be speaking about security of multisigs tomorrow @summit_defi
📅 Date: Nov 2, 2026 11:30 IST
📍Mariott, Mumbai
🎟️ Sign up: luma.com/9qtxqqxx
OKcontract cofounder @hbbiok will be speaking about security of multisigs tomorrow @summit_defi
📅 Date: Nov 2, 2026 11:30 IST
📍Mariott, Mumbai
🎟️ Sign up: luma.com/9qtxqqxx
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Check the agenda: defisecuritysummit.org/2026/agenda#he…
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Binance disclosed a $6.3 billion breach on October 30, the largest incident on our Onchain Risk Map to date, but no wallet private keys were leaked. Instead, preliminary findings point to a compromised DevOps laptop.
We have built this interactive Onchain Risk Map to track e delivery, wallets, signing, account authorization, infrastructure, and execution using typed relationships and explicit evidence confidence.
If you are interested in supporting Onchain Risk Map to become an open operational incident graph for Ethereum security, @thedaofund initiative is live:
initiatives.thedao.fund/initiative/onc…
We have built this interactive Onchain Risk Map to track e delivery, wallets, signing, account authorization, infrastructure, and execution using typed relationships and explicit evidence confidence.
If you are interested in supporting Onchain Risk Map to become an open operational incident graph for Ethereum security, @thedaofund initiative is live:
initiatives.thedao.fund/initiative/onc…
The $6.3B Binance and the much smaller $2.7M Polymarket breaches that both happened today shared a critical detail: no private keys were leaked.
Attackers didn't need the keys. They compromised the software preparing the transactions.
Here is how those attacks worked, and how Chainwall stops them on-chain: medium.com/@okcontract/wh…
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The $6.3B Binance and the much smaller $2.7M Polymarket breaches that both happened today shared a critical detail: no private keys were leaked.
Attackers didn't need the keys. They compromised the software preparing the transactions.
Here is how those attacks worked, and how Chainwall stops them on-chain: medium.com/@okcontract/wh…
Attackers didn't need the keys. They compromised the software preparing the transactions.
Here is how those attacks worked, and how Chainwall stops them on-chain: medium.com/@okcontract/wh…
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At OKcontract Labs, we have been working for years on global security starting from frontend attacks.
And now we have a common ground for that research: Chainwall.
A Polymarket-style frontend compromise (like the good old Kyber one) would not rewrite the Chainwall onchain injected JavaScript can display a fake transaction or request a malicious signature, but the account would still enforce pre-approved workflows, recipient restrictions, and independent approvals.
Control of the website alone would never grant permission to drain the funds!
And now we have a common ground for that research: Chainwall.
A Polymarket-style frontend compromise (like the good old Kyber one) would not rewrite the Chainwall onchain injected JavaScript can display a fake transaction or request a malicious signature, but the account would still enforce pre-approved workflows, recipient restrictions, and independent approvals.
Control of the website alone would never grant permission to drain the funds!
⚠️ SECURITY ALERT: Polymarket faces a suspected frontend compromise as multiple users report WALLET DRAINS and unexpected signature requests.
Trading has been restricted to cancel-only mode, with relayer operations paused as the platform investigates to incidents.
The cause remain unconfirmed.
Avoid the site and DO NOT sign unexpected wallet requests until official guidance confirms it is safe to proceed.
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Find more about the incident on the OKcontract Incident Map: map.okcontract.com/?incident=rece…
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Just added Binance DevOps and EIP-7702 hot wallet drain to the OKcontract Incident Map.
At Chainwall, we are designing security mechanisms to prevent this kind of incidents.
A Binance-style laptop compromise should not give an attacker unrestricted control.
With Chainwall, ontract whose code cannot be replaced through EIP-7702.
- Every execution must pass onchain policy checks.
- Compromising a signing service alone cannot bypass the account required approvals or authorized workflows.
At Chainwall, we are designing security mechanisms to prevent this kind of incidents.
A Binance-style laptop compromise should not give an attacker unrestricted control.
With Chainwall, ontract whose code cannot be replaced through EIP-7702.
- Every execution must pass onchain policy checks.
- Compromising a signing service alone cannot bypass the account required approvals or authorized workflows.
Binance's initial investigation suggests that the security incident may involve a compromised DevOps engineer’s laptop, which allowed an attacker to gain access to a service container and submit unauthorized withdrawal transactions. We have found no evidence of any wallet private a detailed technical post-mortem once the investigation is complete and the facts are fully verified.
The estimated total impact sits at around $6.3B. We have worked with blockchain partners to freeze affected assets, with ~$3 billion frozen on-chain so far.
Binance will cover all losses from the SAFU fund and the company’s funds. User funds are safe. We will also publish an updated Proof of Reserves once the remediation is complete.
As an immediate precaution, Binance has:
- temporarily suspended deposits and withdrawals while security checks are completed;
- revoked the affected address authorisation;
- engaged law enforcement and blockchain intelligence partners to trace and recover funds.
Our teams are working around the clock to resolve this issue safely and thoroughly. We are working closely with our law enforcement partners to confirm the identity of these criminals and bring them to justice.
Please rely only on official Binance channels for updates. Please feel free to contact Binance Customer Support if you have any further questions.
binance.com/en/support/ann…
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Find more about the incident on the OKcontract Incident Map: map.okcontract.com/?incident=rece…
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Attending @EFDevcon next week? Meet OKcontract team in Mumbai.
Our cofounder Henri Binsztok will give a talk about oksolc, a Solidity compiler in Zig released by OKcontract Labs.
📅 Wed, Nov 4 15:20
📍Lightning stage, Mumbai
Our cofounder Henri Binsztok will give a talk about oksolc, a Solidity compiler in Zig released by OKcontract Labs.
📅 Wed, Nov 4 15:20
📍Lightning stage, Mumbai
oksolc 0.2.3 is out!
Fixed callback deadlocks, memory leaks, and a watch-mode bug that could overwrite its input. Faster dependency tracking on shared imports, too.
Still targeting solc 0.8.36, with the same bytecode 🙂
github.com/okcontract/oks…
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