Here are a few options for a formal rewrite, depending on your focus:

• IEC Proposes New Code of Conduct to Combat Disinformation (Most direct and standard)
• IEC Introduces Proposed Code of Conduct Targeting Disinformation (Slightly more formal/authoritative)
• Establishment of Proposed IEC Code of Conduct to Address Disinformation (Most formal/bureaucratic)

Recommendation: The first option is generally preferred for professional publications or news headers.

Depending on the context of your article, here are a few options for a formal rewrite:

Option 1 (Focus on digital literacy/misinformation): “Substantial Portion of Filipino Social Media Users Susceptible to Online Disinformation”

Option 2 (Focus on digital trends): “Significant Segment of the Filipino Population Increasingly Reliant on Digital Platforms”

Option 3 (Neutral/Broad context): “Notable Share of Filipino Internet Users Exhibit High Engagement with Online Content”

Recommendation: If you are referring to the recent study regarding Filipinos and fake news, Option 1 is the most precise and formal choice.

Here are a few options for a formal title, depending on the specific focus of your work:

• Factors Contributing to Susceptibility to Russian Disinformation
• An Analysis of Vulnerabilities to Russian Disinformation Campaigns
• Determinants of Public Susceptibility to Russian Disinformation

Recommendation: “Factors Contributing to Susceptibility to Russian Disinformation” is the most standard and versatile choice for an academic or professional setting.