Ransomware Intel Could Earn You $10M

In May, a ransomware attack by the group Dark Side shut down the Colonial Pipeline, which supplies 45% of the fuel to the US East Coast, causing panic buying and highlighting vulnerabilities in national infrastructure. In response, the US State Department is offering a $10 million bounty for information on the group's leaders and an additional $5 million for affiliates. The fluid nature of hacking groups, which can quickly dissolve and reform, complicates efforts to combat such cyber threats.

What is the total bounty offered by the US State Department for information leading to the arrest of the group leaders?

How does the text describe the nature of hacking groups?