auth.user.delay-length-seconds
Background
Set the delay applied to subsequent authentication attempts after the
criteria in auth.user.allowed-failures-period-length-seconds
and auth.user.allowed-failures-per-period
is exceeded. The delay should be a high enough value to make brute force password guessing impractical
while not inconveniencing legitimate users.
Please be aware that a web server thread will be kept waiting during the delay in the current implementation, so imposing a long delay risks exhausting all web server threads.