The phrase "account details" refers to the specific information and facts about a person's account. It may include things like the account number, username, password, and other important details that are associated with a particular account.
This transfer method can be cheap and fast, but you need to be comfortable making online transactions and know the bank account details of your recipient. (moneysmart.gov.au)
Note that there are other, more rare exceptions, and that the above descriptions do not take into account every detail of every situation. (efile.com)