Cyberattacks are so nuanced, it's not always obvious to label them ransomware. The unanswered questions can leave companies reluctant to report an incident, leaving gaps in what industry, government and law enforcement can do to prevent more attacks.

Included in this Trendline:

• War room preparation key to ransomware response, experts say
• Behind the Firewall: 5 security leaders share incident response plans
• What ransomware negotiations look like