According to a BBC news report the British bank Lloyds TSB had an incident with a customer that had his password changed by one of its employees. Sounds to me like a serious problem with access rights and password change process in general.
'A man who chose "Lloyds is pants" as his telephone banking password said he found it had been changed by a member of staff to "no it's not". Steve Jetley, from Shrewsbury, said he chose the password after falling out with Lloyds TSB over insurance that came free with an account.
He said he was then banned from changing it back or to another password of "Barclays is better". The bank apologised and said the staff member no longer worked there. ' - BBC
Read the full news report here: http://news.bbc.co.uk/2/hi/uk_news/england/hereford/worcs/7585098.stm