Rivalz Network

The `RivalzToken` contract inherits from `Ownable.sol`, the `_owner` has authority over the following functions:
- `renounceOwnership`: Leaves the contract without owner.
- `transferOwnership`: Transfers ownership of the contract to a new account (`newOwner`).

Any compromise of the `_owner` account could allow an attacker to exploit this authority, potentially removing the current owner or transferring ownership to a malicious account.

All of the `RIZ` tokens are sent to the contract deployer. This is a centralization risk because the deployer can distribute tokens without obtaining the consensus of the community. Any compromise to the deployer's account may allow a hacker to steal and sell tokens on the market, resulting in severe damage to the project.

The compiler for Solidity 0.8.20 switches the default target EVM version to [Shanghai](https://blog.soliditylang.org/2023/05/10/solidity-0.8.20-release-announcement/#important-note), which includes the new `PUSH0` opcode. The compiler for Solidity [0.8.20+](https://github.com/ethereum/solidity/releases) did not remove the `PUSH0` opcode. This opcode may not yet be supported on all chains, leading to failed deployments. To work around this issue, use an earlier [EVM](https://docs.soliditylang.org/en/v0.8.20/using-the-compiler.html?ref=zaryabs.com#setting-the-evm-version-to-target) [version](https://book.getfoundry.sh/reference/config/solidity-compiler#evm_version).