Sometimes it can be useful to know which ciphers certain connections are utilising, this will how you the active connections along with their ciphers if applicable.
Reference: https://security.stackexchange.com/a/260139/40579
SELECT t.THREAD_ID,
t.PROCESSLIST_USER,
t.PROCESSLIST_HOST,
t.CONNECTION_TYPE,
sbt.VARIABLE_VALUE AS cipher
FROM performance_schema.threads t
LEFT JOIN performance_schema.status_by_thread sbt
ON (t.THREAD_ID = sbt.THREAD_ID AND sbt.VARIABLE_NAME = 'Ssl_cipher')
WHERE t.PROCESSLIST_USER IS NOT NULL;