how might you notice an attack from ransomware?

how might you notice an attack from ransomware?
Answer
Brief Explanations:
Ransomware attacks often have tell - tale signs. Files may become encrypted and inaccessible, with file extensions changed. Pop - up messages demanding a ransom may appear on the screen. System performance may degrade significantly, and there may be unexpected network activity.
Answer:
Files becoming encrypted and inaccessible, appearance of ransom - demand pop - up messages, significant system performance degradation, unexpected network activity.