That's even worst. In most cases there are failures in multiple levels to reach to such a catastrophic event. If this hack is because of the error of a single e

That's even worst. In most cases there are failures in multiple levels to reach to such a catastrophic event. If this hack is because of the error of a single employee, it means the have no safeguards or procedures setup to prevent such failures of happening. In other words he and his CTO have failed miserably at their job. A company should never depend on a single employee for anything. Also we should expecting to be see more issues in the future.