Federal law—and a judge's order—have officials with Defense, Justice, and Homeland Security reaching out to at least one company that specializes in encrypted-message retention.
The DHS agency is not in active contact with social media platforms, but: “If a threat were to arise that would necessitate us to do so, we would absolutely reach out."
Several other regulatory steps and Congress' 60-day period to review the defense industrial base's new cybersecurity standard still loom before it takes effect.