A report claims Canonical/Ubuntu services were disrupted by an availability-focused (DDoS) attackk attributed to Islamic Cyber Resistance in Iraq - 313 Team. Ubuntu.com was reportedly returning 503 errors, and the article mentions possible disruption to security/update infrastructure.
Here is the current update. Thisnis an ongoingnstory. What's working, What's down: https://thecybersecguru.com/news/massive-attack-ubuntu-canonical-313-team-extortion/