The correct statement regarding the "veto" power in the Security Council, according to the United Nations Charter, is:

Every permanent member of the Security Council can prevent any decision from being accepted by vetoing it.

Under Article 27 of the United Nations Charter, the veto power is granted to the five permanent members of the Security Council, which are China, France, Russia, the United Kingdom, and the United States. Each of these permanent members has the ability to veto any substantive resolution, irrespective of the number of affirmative votes by other Council members. This means that if any one of the permanent members casts a veto, the resolution is blocked from being adopted.

The veto power was established to provide a safeguard for the interests and concerns of the permanent members, recognizing their significant roles in international affairs and ensuring their participation in critical decision-making processes within the Security Council.

Therefore, the correct statement is: Every permanent member of the Security Council can prevent any decision from being accepted by vetoing it.