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Umar Profile
Umar

@0xumarkhatab

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580
Following
1K
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171
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2K

EVM Engineer @ViFi_Labs | 3+ Years | 160+ smart contracts written across 20k+ nSloc | $88 Billion secured as a whitehat

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Joined December 2020
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@0xumarkhatab
Umar
19 hours
i think people are constantly low balling @CertiK because of the past but we are seeing very cool results from them. Respect from my side
@RonghuiGu
Ronghui Gu
1 day
Perhaps there's a way for @CertiK and SRs to both win? 😂
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@0xumarkhatab
Umar
2 days
`forge`
@parkersity_9
parks
2 days
Without naming your job, tell me something you say 15 times per day at work
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@0xumarkhatab
Umar
3 days
But to look at Non stable currencies , @ViFi_Labs is there to do the analogeous. Super bullish
@lucasmanuel_eth
Lucas Manuel ⚡
3 days
These are the type of things that blow my mind about Ethereum. Exchange $4.25 billion of value, settling instantly, from anywhere in the world, with just an internet connection. Oh and it costs $0.04.
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@0xumarkhatab
Umar
3 days
My 2025 twitter wrapped @grok
@TheTradMod
ABDul Rehman | Immunefi
3 days
My 2025 twitter wrapped @grok
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@0xumarkhatab
Umar
3 days
we couldn't predict this . Good to weigh down benefits and cons of Deterministic addresses if you have circular dependencies. The Shim pattern is very sophisticated
@valentinmihov
Valentin Mihov 🦞
4 days
Circular dependencies in smart contracts is something you really don't want to have. **ALWAYS** create & initialize proxies in a single transaction. We need a storage slot level verification of EVM deployments. Generate a trace on testnet and compare this to the prod deployment
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@0xumarkhatab
Umar
3 days
Haskell for @Cardano_CF
@iyoushetwt
Ayushi☄️
4 days
Programming language you learned once but never touched again?
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@0xumarkhatab
Umar
4 days
i endorse this
@Montyly
Josselin Feist
5 days
2026 trend for DeFi protocols: having internal security
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@0xumarkhatab
Umar
13 days
AMMs seem the target these days
@0xCharlesWang
CharlesWang
13 days
Another AMM attack.
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@0xumarkhatab
Umar
17 days
Refersher on why you need _disableInitializer in implementation contract's constructor ( used to ensure the implementation is not able to be initialized and only the proxy can be initialized through initialize ) source : https://t.co/C1hfpch28Q
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@Mindset_Machine
Mindset Machine 
17 days
Tony Robbins Saves a Man's Life‼️✨
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@AmanSharma_554
Aman
18 days
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854
5K
@0xumarkhatab
Umar
17 days
Loved the Alpha at timestamp - 6:53:00 Fx onchain baby
@stable_summit
Stable Summit 🦫
24 days
StableSummit at DeFiConnect 2025 - Day 2
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@0xumarkhatab
Umar
20 days
you used vscode as first IDE i used Visual Studio (c++) we are not same bro !
@iyoushetwt
Ayushi☄️
20 days
What was the first code editor you ever used? Mine was Sublime Text
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@0xumarkhatab
Umar
1 month
i like these green numbers Although test suites can not guarantee the absence of bugs but they can pretty much help catch and fix a lot of them Long term, smart contracts' security is an everyday thing, and we all need to keep getting better
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@0xumarkhatab
Umar
1 month
The approach i used for solving foundry's stack too deep errors in forge coverage without using IR in a complex code base
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@0xumarkhatab
Umar
1 month
The most awaited Non-Blockchain PLumber course is here 🔥 This cost-counter-intuitive migration of career is gonna be fire @PatrickAlphaC you're gonna steal the job of DJs https://t.co/UMLVAiI6eb
@panditdhamdhere
Pandit | Ξ🦇🔊
1 month
Most awaited course From Software Engineer to plumber full course live on YT by @PatrickAlphaC Link below 👇🏻
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@FUCORY
fucory guillotine summoner
1 month
Ethereumjs - "I'm not fuckin leavin!"
@EFJavaScript
EthereumJS
1 month
1/9 🚀 We're excited to announce EthereumJS v10.1.0! This release brings full support for the Fusaka (Osaka) hardfork with 8 major EIP implementations + BPO hardforks. All libraries now work seamlessly with the latest Ethereum protocol features! 🎉
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@0xMSF14
MSF (beta)
1 month
web2 bounty hunting has been around for decades, people still get $50k bounties yesterday. This idea of telling new participants that there is no money in web3 bounty hunting, which has not even been around for up to a decade, will only create more black hats.
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@0xumarkhatab
Umar
1 month
What a security-learning Blockchain dev's profile looks like
@PatrickAlphaC
Patrick Collins
1 month
This is what a state sponsored non-ethical hacker’s GitHub profile looks like
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