SA-22: Unsupported System Components
From NIST's SP800-53:
a. Replace system components when support for the components is no longer available from the developer, vendor, or manufacturer; or b. Provide the following options for alternative sources for continued support for unsupported components [Selection (one or more): in-house support; [Assignment: organization-defined support from external providers]].
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MITRE ATT&CK Techniques
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