+SI-23 Information Fragmentation

SI-23 Information Fragmentation

Control

Based on [Assignement: circumstances]:
  1. Fragment the following information: [Assignement: information] ; and
  2. Distribute the fragmented information across the following systems or system components: [Assignement: systems or system components].

Discussion

One objective of the advanced persistent threat is to exfiltrate valuable information. Once exfiltrated, there is generally no way for the organization to recover the lost information. Therefore, organizations may consider dividing the information into disparate elements and distributing those elements across multiple systems or system components and locations. Such actions will increase the adversary’s work factor to capture and exfiltrate the desired information and, in so doing, increase the probability of detection. The fragmentation of information impacts the organization’s ability to access the information in a timely manner. The extent of the fragmentation is dictated by the impact or classification level (and value) of the information, threat intelligence information received, and whether data tainting is used (i.e., data tainting-derived information about the exfiltration of some information could result in the fragmentation of the remaining information).

Assessment Objective

  1. under [Assignement: circumstances], [Assignement: information] is fragmented;
  2. under [Assignement: circumstances] , the fragmented information is distributed across [Assignement: systems or system components].

Assessment Method

Examine

System and information integrity policy system and information integrity procedures personally identifiable information processing policy procedures addressing software and information integrity system design documentation system configuration settings and associated documentation procedures to identify information for fragmentation and distribution across systems/system components list of distributed and fragmented information list of circumstances requiring information fragmentation enterprise architecture system security architecture system security plan privacy plan other relevant documents or records

Interview

Organizational personnel with information security and privacy responsibilities organizational personnel with systems security engineering responsibilities system developers security architects

1. Forbhreathnú

1.1 Tagairtí

1.2 Ceanglais aitheanta

1.3 Rialacháin ghaolmhara

2. Ceanglais aitheanta

Ceanglais

3. Rialacháin ghaolmhara

Rialacháin

Saincheisteanna nasctha

Naisc
is blocked by SI-23 Information Fragmentation – Assessment Procedure