➕ Add Arcadia Finance attack

Signed-off-by: Pascal Marco Caversaccio <pascal.caversaccio@hotmail.ch>

README.md

@@ -67,6 +67,7 @@ A chronological and (hopefully) complete list of reentrancy attacks to date.
 - [Paribus attack](https://twitter.com/Phalcon_xyz/status/1645742620897955842) – 11 April 2023 | [Victim contract](https://arbiscan.io/address/0x375Ae76F0450293e50876D0e5bDC3022CAb23198)[^5], [Exploit contract](https://arbiscan.io/address/0xcd31E27F0A811de7139938b1972b475697f8c50b), [Exploit transaction](https://arbiscan.io/tx/0x0e29dcf4e9b211a811caf00fc8294024867bffe4ab2819cc1625d2e9d62390af)
 - [MuratiAI attack](https://twitter.com/PeckShieldAlert/status/1666110220404428800) – 6 June 2023 | [Victim contract](https://bscscan.com/address/0x69C2fcAe7e30b429166BD616A322e32BeC036bCf), [Exploit contract](https://bscscan.com/address/0x5a4216E0990CaFEB540a253AD79b09ac2Acd3AD1), [Exploit transaction](https://bscscan.com/tx/0x62dbb9d5967d735ebf6fcfbbf3b7121194d4a7d61c85627388064cb8fe0ad65f)
 - [Sturdy attack](https://twitter.com/BlockSecTeam/status/1668084629654638592) – 12 June 2023 | [Victim contract](https://etherscan.io/address/0xB1ebF8F77ae002d487e7Bde22c6180be0AF6a3d4), [Exploit contract](https://etherscan.io/address/0x0B09c86260C12294e3b967f0D523B4b2bcdFbeab), [Exploit transaction](https://etherscan.io/tx/0xeb87ebc0a18aca7d2a9ffcabf61aa69c9e8d3c6efade9e2303f8857717fb9eb7)
+- [Arcadia Finance attack](https://twitter.com/Phalcon_xyz/status/1678250590709899264) – 10 July 2023 | [Victim contract](https://optimistic.etherscan.io/address/0xD417c28aF20884088F600e724441a3baB38b22cc)[^6], [Exploit contract](https://optimistic.etherscan.io/address/0x01a4d9089C243CCaEbE40AA224ad0CaB573B83c6), [Exploit transaction](https://optimistic.etherscan.io/tx/0xca7c1a0fde444e1a68a8c2b8ae3fb76ec384d1f7ae9a50d26f8bfdd37c7a0afe)
 
 > Some of the exploits carried out involve multiple separate transactions as well as multiple victim and exploit contracts. For each attack, I have listed the most affected victim contract, the most critical exploit contract, and the most devastating exploit transaction.
 
@@ -79,3 +80,4 @@ A chronological and (hopefully) complete list of reentrancy attacks to date.
 [^3]: We list the victim contract, the exploit contract, and the exploit transaction on Arbitrum. However, the same exploit was carried out on Optimism with almost the same amount of loss: [Victim contract](https://optimistic.etherscan.io/address/0xDFeC2EA848Cf8fdA096503f8D9F37AFac6E0ECF2), [Exploit contract](https://optimistic.etherscan.io/address/0xEe29b6AEE6E4783Db176946e4e8F1E5fDCD446A7), [Exploit transaction](https://optimistic.etherscan.io/tx/0x6c19762186c9f32c81eb2a79420fc7ad4485aa916cab37ec278b216757bfba0d).
 [^4]: The same exploit hit another victim with almost the same amount of loss: [Victim contract](https://arbiscan.io/address/0x4c8e1656E042A206EEf7e8fcff99BaC667E4623e).
 [^5]: The same exploit hit two other victims with almost the same amount of loss: [Victim contract 2](https://arbiscan.io/address/0x367351F854506DA9B230CbB5E47332b8E58A1863), [Victim contract 3](https://arbiscan.io/address/0xD3e323a672F6568390f29f083259debB44C41f41).
+[^6]: We list the victim contract, the exploit contract, and the exploit transaction on Optimism. However, the same exploit was carried out on Ethereum, albeit with a smaller loss amount: [Victim contract](https://etherscan.io/address/0x9aa024D3fd962701ED17F76c17CaB22d3dc9D92d), [Exploit contract](https://etherscan.io/address/0x56A35FAe9b0416360e1752A9abE78D89F51517CF), [Exploit transaction](https://etherscan.io/tx/0xefc4ac015069fdf9946997be0459db44c0491221159220be782454c32ec2d651).