S.C. Code Ann. § 15-63-100

In every case the Attorney General, or circuit judge, as the case may be may require as a condition precedent to bringing such action that satisfactory security shall be given to indemnify the State against the costs and expenses to be incurred thereby. In every case brought by the Attorney General in which such security is given the measure of compensation to be paid by such person to the Attorney General shall be left to the agreement, express or implied, of the parties.