Cipher - audit

In the contract `AccessControl` the role `adminRole` has authority over the following functions: - grantRole() - revokeRole() Any compromise to the `adminRole` account may allow the hacker to take advantage of this authority and grant associated role to any account or revoke the role from any account. Note that `DEFAULT_ADMIN_ROLE` is the admin role for all roles. ----------- In the contract `AccessControl` the role `role` has authority over the following function: - renounceRole() Any compromise to the `role` account may allow the hacker to take advantage of this authority and renounce corresponding privileges to functions within other contracts. --- In the contract `Ownable` the role `_owner` has authority over the functions shown in the diagram below. Any compromise to the `_owner` account may allow the hacker to take advantage of this authority and transfer or renounce the ownership.  --- In the contract `PowerfulERC20` the role `MINTER_ROLE` has authority over the function shown in the diagram below. Any compromise to the `MINTER_ROLE` account may allow a hacker to take advantage of this authority and mint an arbitrary amount of tokens. In this case, the inflation of the token could lead to significant fluctuation of the price.  --- In the contract `PowerfulERC20` the role `_owner` has authority over the function shown in the diagram below. Any compromise to the `_owner` account may allow the hacker to take advantage of this authority and disable the mint functionality.  --- In the contract `TokenRecover` the role `_owner` has authority over the functions shown in the diagram below. Any compromise to the `_owner` account may allow the hacker to take advantage of this authority and transfer tokens locked in the contract.