Is Arbitrum as safe as Ethereum?

I've been hearing a lot about Arbitrum as a scaling solution for Ethereum, but my primary concern is safety. Could you elaborate on whether Arbitrum offers the same level of security as Ethereum? I understand that Arbitrum uses the Optimistic Rollup technology, but how does this impact its overall security posture? Also, since Arbitrum relies on Ethereum for its security, could any vulnerabilities in Ethereum potentially affect Arbitrum's safety as well? It's crucial for me to understand these aspects before considering the use of Arbitrum for my financial transactions." This question reflects a common concern among those exploring Layer 2 solutions like Arbitrum. Understanding the intricacies of its security model, especially its reliance on Ethereum, is essential for assessing its suitability for financial applications. By exploring these points, one can make a more informed decision about whether Arbitrum meets their specific security requirements.