29 1 tained in connection with activities authorized 2 in this title. 3 (B) PERIODIC REVIEW.—The Attorney 4 General shall, in coordination with heads of the 5 appropriate Federal entities and in consultation 6 with officers and private entities described in 7 subparagraph (A), periodically, but not less fre- 8 quently than once every two years, review the 9 guidelines promulgated under subparagraph 10 (A). 11 (3) CONTENT.—The guidelines required by 12 paragraphs (1) and (2) shall, consistent with the 13 need to protect information systems from cybersecu- 14 rity threats and mitigate cybersecurity threats— 15 (A) limit the effect on privacy and civil lib- 16 erties of activities by the Federal Government 17 under this title; 18 (B) limit the receipt, retention, use, and 19 dissemination of cyber threat indicators con- 20 taining personal information or information 21 that identifies specific persons, including by es- 22 tablishing— 23 (i) a process for the timely destruction 24 of such information that is known not to † S 754 ES