News of a reported cyberattack at the Trump campaign is likely just the beginning of what promises to be a hectic, unpredictable cybersecurity run-up to November's election.

Why it matters: Since 2016's Russian-backed pilfering of the Hilary Clinton campaign's private emails, the specter of foreign meddling in U.S. elections has returned every four years, fueling mistrust in the political process.

Driving the news: Politico reported Saturday that the Trump campaign claimed to have been attacked by Iran-backed hackers after the publication had received stolen dossiers and other materials from an anonymous source.