The Internet needs new rules. Let’s start in these four areas.

I believe we need a more active role for governments and regulators. By updating the rules for the Internet, we can preserve what’s best about it — the freedom for people to express themselves and for entrepreneurs to build new things — while also protecting society from broader harms. From what I’ve learned, I believe we need new regulation in four areas: harmful content, election integrity, privacy and data portability.

• Harmful content: Internet companies should be accountable for enforcing standards on harmful content. It’s impossible to remove all harmful content from the Internet, but when people use dozens of different sharing services — all with their own policies and processes — we need a more standardized approach.
• Protecting elections: Deciding whether an ad is political isn’t always straightforward. Our systems would be more effective if regulation created common standards for verifying political actors.
• Effective privacy and data protection needs a globally harmonized framework: I believe it would be good for the Internet if more countries adopted regulation, such as the European Union's European Union’s General Data Protection Regulation, as a common framework.
• Data portability: If you share data with one service, you should be able to move it to another. This gives people choice and enables developers to innovate and compete.

[Mark Zuckerberg is founder and chief executive of Facebook.]