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sach1r0

Security Researcher

thinking

Contact Me

High

Total

Medium

Total

$3.74K

Total Earnings

#999 All Time

39x

Payouts

1x

3rd Places

1x

Top 10

7x

Top 25

All

Sherlock

Code4rena

Oct '25

Index Fun Order Book

43.38 USDC • 1 total finding • Sherlock • sach1r0

#12

medium

Attacker can acquire position tokens without paying by exploiting integer division in payment calculation

May '23

Footium

0.01 USDC • 1 total finding • Sherlock • sach1r0

#32

medium

Use `safeTransfer()` instead of `transfer()` for ERC20 transfers

Mar '23

Gitcoin

98.93 USDC • Sherlock • sach1r0

#32

Jan '23

Cooler

0.30 USDC • 1 total finding • Sherlock • sach1r0

#30

high

Use safeTransfer()/safeTransferFrom() instead of transfer()/transferFrom() for ERC20 transfers

Nov '22

Buffer Finance

6.52 USDC • 1 total finding • Sherlock • sach1r0

#12

medium

Use safeTransferFrom() instead of transferFrom() for ERC20 transfers

DODO

514.19 USDC • 2 total findings • Sherlock • sach1r0

medium

Use `safeTransfer()` instead of `transfer()` for ERC20 transfers

medium

Use `call()` instead of `transfer()` when transferring eth

Sep '22

Frax Ether Liquid Staking contest

40.83 USDC • Code4rena • sach1r0

#63

VTVL contest

27.95 USDC • Code4rena • sach1r0

#70

Art Gobblers contest

55.2 USDC • Code4rena • sach1r0

#20

Harpie

45.24 USDC • 2 total findings • Sherlock • sach1r0

#18

medium

Use `call()` instead of `transfer()` when transferring eth

medium

Use `safeTransferFrom()` instead of `transferFrom()` for ERC721 transfers

FEI and TRIBE Redemption contest

33.58 USDC • Code4rena • sach1r0

#14

Nouns Builder contest

60.77 USDC • Code4rena • sach1r0

#96

Aug '22

Nouns DAO contest

52.1 USDC • Code4rena • sach1r0

#37

FIAT DAO veFDT contest

44.84 USDC • Code4rena • sach1r0

#62

Fraxlend (Frax Finance) contest

67.01 USDC • Code4rena • sach1r0

#54

Foundation Drop contest

20.6 USDC • Code4rena • sach1r0

#66

Rigor Protocol contest

62.34 USDC • Code4rena • sach1r0

#64

Jul '22

Golom contest

56.49 USDC • Code4rena • sach1r0

#81

Swivel v3 contest

44.27 USDC • Code4rena • sach1r0

#55

ENS contest

118.75 USDC • Code4rena • sach1r0

#56

Fractional v2 contest

99.41 USDC • Code4rena • sach1r0

#77

Juicebox V2 contest

128.1 USDC • Code4rena • sach1r0

#45

Jun '22

Putty contest

21.17 USDC • Code4rena • sach1r0

#85

Canto v2 contest

43.47 USDC • Code4rena • sach1r0

#32

Nibbl contest

45.58 USDC • Code4rena • sach1r0

#45

Yieldy contest

26.57 USDC • Code4rena • sach1r0

#68

Illuminate contest

62.46 USDC • Code4rena • sach1r0

#58

Nested Finance contest

36.19 USDC • Code4rena • sach1r0

#19

Badger-Vested-Aura contest

28.99 USDC • Code4rena • sach1r0

#42

Infinity NFT Marketplace contest

80.21 USDC • Code4rena • sach1r0

#58

Canto contest

290.75 USDC • Code4rena • sach1r0

#39

Connext Amarok contest

226.51 USDC • Code4rena • sach1r0

#43

Notional x Index Coop

135.76 USDC • Code4rena • sach1r0

#33

May '22

Backd Tokenomics contest

171.81 USDC • Code4rena • sach1r0

#26

veToken Finance contest

52.07 USDT • Code4rena • sach1r0

#60

Velodrome Finance contest

151.4 USDC • Code4rena • sach1r0

#42

Rubicon contest

82.87 USDC • Code4rena • sach1r0

#70

OpenSea Seaport contest

434.95 USDC • Code4rena • sach1r0

#49

Aura Finance contest

233.2 USDC • Code4rena • sach1r0

#40