Blindsided

Yanni was blindsided by Skura's shocking revelations.

When Yanni learned about Skura's affair, he was blindsided.

I don't like being blindsided.

Michael totally blindsided Linda.

Michael showed up just like that with Linda and totally blindsided Linda.

Aside from government action, the Biden administration has called on private businesses, which most often are blindsided by the ransomware attacks, to modernize their cyber defenses to meet the threat.

Tom really blindsided me.

The announcement blindsided everyone.

I was blindsided by his reaction.