The AGG_SERVICE_ACCOUNT user defaults to a well known password and can be used to login to the webclient. After changing the password in the admin client, queries will throw errors with the following:

10:16:37,317 ERROR [edu.harvard.i2b2.pm.delegate.ServicesHandler] (Thread-114) Username or password does not exist
10:16:37,318 ERROR [stderr] (Thread-114) java.lang.Exception: Username or password does not exist
10:16:37,319 ERROR [stderr] (Thread-114) at edu.harvard.i2b2.pm.delegate.ServicesHandler.execute(Unknown Source)
10:16:37,319 ERROR [stderr] (Thread-114) at edu.harvard.i2b2.pm.ws.ExecutorRunnable.run(Unknown Source)
10:16:37,319 ERROR [stderr] (Thread-114) at java.lang.Thread.run(Thread.java:744)
10:16:37,321 ERROR [edu.harvard.i2b2.pm.ws.PMResponseMessage] (http--0.0.0.0-9090-4) Error reported by Ont web Service Username or password does not exist

Queries no longer function as well. How do we change the password to be more secure?