Threat DF.A.CCDFCS.6.3

URI: DF.A.CCDFCS.6.3

Package: ProcessComms

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Description: Flow of data Data from FlowsFrom to FlowsTo via untrustworthy Service disabled: if the system operates a policy to disable the flow of data Data from FlowsFrom if there is a perceived loss of trustworthiness in a recipient Service, then there will also be a loss of availability if Service is untrustworthy.

Threat Type: Primary Threat

Matching Pattern:

MP-CCDFCS

Finds a data flow that goes via a client and thence via a service, plus the related client channel and data.

Triggers Secondary Threats (5)

DS.T.HPDFDAuDS.0

Data Data stored on Host cannot be updated by Process with input from FlowsFrom: process Process manages a stored copy of data Data on Host, so if a flows of updates from FlowsFrom is not available, then Process cannot update this copy of Data which will become out of date.

Hu.T.HuirPvDF.0.2

User Human affected by unavailable data Data from FlowsFrom received by Process: if the flow of data Data to Process is interrupted, that would have been displayed to user Human, they may make decisions based on the out of date information.

P.A.PuDFDI.0

Lack of incoming Data affects availability of Process: process Process depends on an incoming flow of Data from FlowsFrom, so if that is unavailable the availablity of the process will be affected.

P.T.P-uDFDI.0

Loss of availability in flow of Data to Process caused a delay in processing: since process Process uses the incoming copy of data Data but does not depend on it, if that copy is unavailable, the process can continue but will be processing out of date information.

Se.A.SePDmFF.0

Loss of availability at sensor Sensor: if the onboard data from a sensor is not available to any client, it is modelled as a loss of availability at the sensor.