PM-16, Threat Awareness Program, is one sentence: implement a threat awareness program that includes a cross-organization information-sharing capability for threat intelligence. The word cross-organization is the point. Reading advisories on your own is not enough. You are expected to take part in an exchange.
NIST 800-53 binds federal systems, and other organizations through contract. If you are a small or mid size company, treat it as a reference for how to answer a customer who asks, "How do you learn about threats that target your industry?"
What it means in practice
The record opens with the reason. Adversaries, especially advanced persistent threats, are sophisticated and changing, so a breach or compromise is more likely to succeed at some point. One of the best techniques to address that is sharing threat information.
NIST names three kinds of material that can be shared: threat events, meaning tactics, techniques and procedures you have experienced; mitigations you found effective against certain threats; and threat intelligence, meaning indications and warnings about threats.
Sharing can be bilateral or multilateral. Bilateral covers government to commercial and government to government cooperatives. Multilateral means taking part in threat sharing consortia. Some information needs special agreements and protection, and some is freely shared.
For a company this usually means three habits. You receive intelligence from a source relevant to your sector. You send something back when you have it. And you have a defined path from a received warning to an action, such as a detection rule or a patch priority change. Receiving without acting is a reading list, not a program.
The record lists one enhancement, PM-16.1 Automated Means for Sharing Threat Intelligence. It moves exchange from email threads to machine readable feeds, so indicators reach your tools without a person retyping them.
Evidence to collect
- Membership or participation records for sharing groups, such as sector information sharing communities or government programs
- The sharing agreement or terms of use, where one applies
- A log of intelligence received and the action taken on each item
- Examples of information you shared, with sensitive details removed
- The procedure that routes a threat warning to detection and patch owners
- For PM-16.1, a description of the feed or integration that ingests indicators automatically
Common gaps
- The team subscribes to feeds but nobody owns triage
- Intelligence is received and never shared back
- No record connects a warning to a change in controls
- Sharing agreements and legal review were never done, so staff avoid sharing at all
- Automated feeds push indicators that nobody tunes, which floods analysts with noise
How to implement it
- Find the sharing community for your sector and apply. Many are free or low cost.
- Write a short sharing policy with legal: what may be shared, who approves, and how sensitive data is stripped.
- Assign an owner for incoming intelligence and set a triage rhythm, daily or weekly.
- Record each actionable item and the resulting change, such as a new detection or a priority bump.
- Share one useful finding at a time, such as an indicator or a mitigation that worked. Small and regular beats large and rare.
- Add automation for indicators only after the manual process works.
Try it yourself
Software supply chain threats are among the most commonly shared. You can check a dependency list against known vulnerable packages with the free in-browser dependency scan at gold.safeguard.sh/scan, then compare what it finds with the warnings that reach you.
Quick check
What three kinds of information does the record say can be shared?
Threat events (tactics, techniques and procedures experienced), effective mitigations, and threat intelligence such as indications and warnings.
Is joining a sharing group enough?
Not on its own. You also need to show what you did with what you received and what you contributed.
