An interesting attack against the USA, critical infrastructure, which had an immediate impact:
"A cyber attack forced the shutdown of a key U.S. pipeline that carries almost half of the East Coast's fuel supply. Its operator, Colonial Pipeline, says 5,500 miles of pipeline has been closed while containing the breach. An anonymous source tells The Wall Street Journal ransomware appears to be involved. Analysts don’t expect fuel markets to be affected unless the shutdown lasts beyond a few days. The breach is happening after two major attacks on U.S. computer networks, and it shows "core elements of our national infrastructure continue to be vulnerable," per a former National Security Agency official."
Ransomware apparently was involved again. So did a backup failure, or was it a human error?