Yahoo is handing over private and personal information about hundreds of its users to Australian government agents, a new transparency report has revealed.

In the first six months of 2013, Australian government agents made 704 requests for access to data relating to 799 Yahoo accounts or users.

The US-headquartered company granted full access in response to just 11 of those requests - handing over information such as the content of Yahoo emails, uploaded files and Yahoo address, calendar and notepad entries.

The firm also handed over so-called "non-content data" in response to 305 of the requests - giving government agents access to information such as the names, locations, IP addresses, login details and billing information belonging to Yahoo account holders.

Yahoo rejected 242 of the requests for data and found no data in 146 of the cases.