Department of Homeland Security issues guidance on how to share cyberthreat data. Guidance is part of the Cybersecurity Information Sharing Act, enacted late last year. The guidance is the latest move by the government to implement the new law. The non-federal entity guidance also describes defensive measures that can be shared that detects, prevents or mitigates known or suspected cybersecurity threats or security vulnerabilities. A cyberthreat indicator offers a number of observable characteristics: a malicious email, IP addresses, file hashes, domain names, URLs, malware files and malware artifacts.”]
Source: https://www.bankinfosecurity.com/dhs-issues-guidance-on-how-to-share-cyberthreat-data-a-8877