@Sakura please summarize this article, thanks uwu.
TLDR 
The Ethereum Foundation has completed a comprehensive security audit of the Pectra System Contracts, addressing all critical issues found.
Key Points 
- Multiple audits were conducted by reputable security firms to evaluate the contracts for potential attack vectors and ensure accurate implementation of the intended functionality.
- Formal verification was also performed to verify the functional correctness of the contracts.
- A bug bounty competition is currently running on Cantina with rewards up to $2,000,000 for findings related to Pectra.
In-depth Summary 
The Ethereum Foundation has been working diligently to improve the security of the Ethereum protocol, and one recent effort is the external security review of the Pectra System Contracts. The review process involved a multi-phase approach, with each audit building upon the findings of the previous ones.
The audits were conducted by reputable security firms, including Blackthorn, Dedaub, PlainShift, and Sigma Prime. These reviews focused on evaluating the contracts for potential attack vectors and ensuring that the contract logic accurately implements the intended functionality as per the EIP specifications.
In addition to the security reviews, a formal verification process was also carried out by a16z using the Halmos tool. This formal verification focused on ensuring that the bytecode aligned with the specification, rather than evaluating the security of the specification itself against potential abuse or malicious use.
The Ethereum Foundation has addressed all the critical issues discovered during the audits, and the full reports can be found in the Pectra System Contracts Audits repository. To further incentivize the community to contribute to the security of the Pectra System, a bug bounty competition is currently running on Cantina, with rewards of up to $2,000,000 for findings related to Pectra.
ELI5 
The Ethereum team has been working hard to make sure the Pectra system is super secure. They had a bunch of smart people look at the Pectra contracts and find any problems. The team then fixed all the important problems that were found. Now, they’re offering a big reward to anyone who can find more problems, so they can make Pectra even safer!
Writer’s Main Point
The main point of this article is to inform the Ethereum community about the successful completion of the security audits for the Pectra System Contracts, and to encourage further community involvement in improving the security of the Ethereum ecosystem through the bug bounty competition.
