ABA

Founder and Principal Security Researcher at Cyba Blockchain Security, with 10+ years of combined Web2 and Web3 security expertise.

Audited smart contracts securing over $1B TVL, with 1000+ findings across 51 private and collaborative engagements*.

Former Security Researcher & Team Lead at Bitdefender's Cyber Threat Intelligence Lab.

Collaborated with top-tier security teams including Guardian Audits (EVM) and Clarity Alliance (Stacks, Bitcoin L2).

Ranked 🥇 1st in multiple audit contests; consistent top-10 finisher**..

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Blog: abarbatei.xyz

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Security Engagements

Security Engagements done in 2025 (25)

Date	Project	Audited Functionality	Organization	Ecosystem & Tech	Report
`Dec`	Zest V2	Borrowing and lending (further upgrades)	Clarity Alliance
`Dec`	Granite	Miscellaneous improvements	Clarity Alliance
`Nov`	Bitflow	HODLMM (upgrades)	Clarity Alliance
`Dec`	Zest V2	Borrowing and lending (upgrades)	Clarity Alliance
`Oct`	Hermetica	hBTC yield protocol	Clarity Alliance
`Oct`	Zest V2	Borrowing and lending	Clarity Alliance
`Sep`	Bitflow	HODLMM	Clarity Alliance
`Sep`	Hermetica	USDh upgrade and security enhancements	Clarity Alliance
`Aug`	Granite	Pyth oracle client upgrade	Clarity Alliance
`Jul`	Stacks Foundation	SIP-31 boot contract	Clarity Alliance
`Jun`	Liquify Ventures	Referral manager component upgrade	Independent
`May`	Liquify Ventures	Borrowing and lending protocol	Independent
`May`	Huego	On-chain turn-based strategic block placing game	ChainThreat
`May`	Granite	Timelock, flash-loan and daily caps integration	Clarity Alliance
`May`	StackingDAO	sBTC reward transfer logic changes	Clarity Alliance
`May`	Liquify Ventures	Deposit and claim component	Independent
`Apr`	ALEX Lab	Discrete Automated Market Maker (DAMM) swap	Clarity Alliance
`Apr`	Bitflow StableSwap	Unbalanced liquidity withdrawals extension	Clarity Alliance
`Mar`	iLayer	LayerZero integration for an intent-based orderbook	Independent
`Mar`	Hermetica	USDh minting contract	Clarity Alliance
`Mar`	Bitflow Flex Pools	Stableswap algorithm extension	Clarity Alliance
`Feb`	Accountable	ERC7540 vault implementation	Independent
`Jan`	Axelar	Cross-chain bridge	Clarity Alliance
`Jan`	iLayer	Cross-chain, intent-based orderbook	Independent
`Jan`	Inferno.fun	Bonding curve token launchpad	Independent

Security Engagements done in 2024 (22)

Date	Project	Audited Functionality	Organization	Ecosystem & Tech	Report
`Dec`	Granite	On-chain price oracle integration	Clarity Alliance
`Dec`	sBTC Reward Program	Staking contract	Clarity Alliance
`Dec`	sBTC	Bitcoin bridging mechanism	Clarity Alliance
`Dec`	Pyth Oracle	On-chain price oracle implementation	Clarity Alliance
`Nov`	Zest Protocol E-Mode	Extension on a borrowing and lending protocol	Clarity Alliance
`Oct`	Undisclosed	Bitcoin backed stablecoin	Undisclosed
`Sep`	Bitflow StableSwap Staking	StableSwap LP staking mechanism	Clarity Alliance
`Sep`	Bitflow StableSwap	Extension to the existing StableSwap implementation	Clarity Alliance
`Sep`	Zest Protocol BTCz	Bitcoin to Stacks BTC bridge	Clarity Alliance
`Aug`	Granite Safety Module	AAVE-like Umbrella Safety Module	Independent
`Aug`	Stacks Nakamoto Upgrade	Node infrastructure software	Clarity Alliance
`Jul`	BlastTheBalloon	Extension on my previous BTB audit	sub7
`Jun`	Granite	Borrowing and lending protocol	Independent
`Jun`	Pontis Bridge	Bitcoin asset bridge	Clarity Alliance
`May`	BlastTheBalloon	Blast on-chain lottery game	sub7
`May`	b0rder1ess	Extension on my previous NAP audit	Independent
`May`	DN404	ERC7631 standard co-joined ERC20 and ERC721 implementation	Guardian
`Apr`	Undisclosed	GMX V2 backed stablecoin	Guardian
`Mar`	Undisclosed	Staking and token migration	Guardian
`Mar`	Undisclosed	GMX V1 backed stablecoin	Guardian
`Feb`	b0rder1ess	NFTs backed by Uniswap V2 liquidity	Independent
`Jan`	Rest Finance	Liquid Restaking EigenLayer Integration	Guardian

Security Engagements done in 2023 (4)

Date	Project	Audited Functionality	Organization	Ecosystem & Tech	Report
`Dec`	Ithil	Borrowing, lending and options logic; GMX V1, AAVE, Fraxlend and Angle integration	Independent
`Dec`	Umami	GMX V2 market index: GMI	Guardian
`Nov`	Dolomite	GMX V2 integration; borrowing and lending GM	Guardian
`Oct`	PariFi	Perpetuals logic	Guardian

Public Audit Competitions done in 2023

Date	Contest	Platform	Rank	Official Report	My findings
`Oct`	Brahma	Code4rena	🥇 1st out of 51	Link	1M
`Jul`	Beedle - Oracle free perpetual lending	CodeHawks	7th out of 276	Link	5H 2M
`May`	Maia DAO Ecosystem	Code4rena	6th out of 101	Link	2H 4M
`May`	Juicebox Buyback Delegate	Code4rena	🥇 1st out of 72	Link	1M
`Apr`	EigenLayer	Code4rena	18th out of 43	Link	1M
`Apr`	ENS	Code4rena	21th out of 59	Link	Lows
`Mar`	Neo Tokyo	Code4rena	5th out of 123	Link	2H
`Feb`	OlympusDAO: Single Sided Liquidity Vaults	Sherlock	11th out of 154	Link	3H 1M
`Feb`	Fair Funding by Alchemix & Unstoppable	Sherlock	5th out of 107	Link	3M
`Jan`	OpenSea Seaport 1.2	Code4rena	6th out of 23	Link	Lows

Other Public Audit Contests

Date	Contest	Platform	Rank	Official Solution
`Jun 2025`	Race 42	Secureum	11th out of 49	Link
`May 2025`	Race 41	Secureum	9th out of 50	Link
`Feb 2025`	Race 38	Secureum	23th out of 47	Link
`Jan 2025`	Race 37	Secureum	4th out of 51	Link
`Nov 2024`	Race 35	Secureum	24th out of 91	Link
`Sep 2024`	Race 33	Secureum	16th out of 72	Link
`Aug 2024`	Race 32	Secureum	25th out of 69	Link
`Jul 2024`	Race 31	Secureum	8th out of 83	Link
`Feb 2024`	Race 27	Secureum	25th out of 140	Link
`Oct 2023`	Race 22	Secureum	13th out of 175	Link
`Mar 2023`	Race 16	Secureum	16th out of 205	Link

Audit Portfolio

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