What factors can cause controls that are established and implemented fora prolonged period and loose their effectiveness?

Controls can lose their effectiveness over time due to factors such as changes in the external environment, including new regulations or market dynamics that render existing controls obsolete. Additionally, organizational changes, such as restructuring or shifts in strategy, can lead to misalignment with control objectives. Human factors, such as employee complacency, lack of training, or turnover, can also diminish adherence to established controls. Lastly, technological advancements may require updates to controls that are not promptly addressed.