Github user jtstorck commented on the issue:
https://github.com/apache/nifi/pull/1636
@aperepel Can you add usage documentation about the risks of allowing the
account name and key to be stored as flowfile attributes? Mentioning that
sensitive attributes are not supported, and that anyone with provenance access
for the processors will be able to see the attribute values. Also, the
flowfile repository, where the attributes are stored, does not support
encryption internally, and unless the repository is being written to a TDE
partition, the attribute values could possibly be accessed there, as well.
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