Moscow Metro Digital Outage: Alleged Cyberattack or Technical Failure?

The Moscow Metro website and mobile app experienced widespread outages on March 31, 2023 (reports up to ~40,000 users), displaying a banner referencing the recent Ukrainian Railways cyberattack and prompting speculation of a related compromise. Authorities called the issues "technical maintenance," and no technical indicators, attribution, or evidence of data theft were provided; the report frames the outage as part of a broader wave of disruptions affecting regional transportation infrastructure.