Here are a few options for a formal title, depending on the desired emphasis:
Option 1 (Direct and Professional):
Presidential Communications Office Intensifies Initiatives Against Disinformation
Option 2 (Action-Oriented):
PCO Secretary Details Strategic Efforts to Combat Fake News
Option 3 (Formal and Comprehensive):
Presidential Communications Office Outlines Comprehensive Strategy to Address Misinformation
Recommendation: Option 1 is the most standard for official reporting.