Apple has launched a blistering attack on three of Australia's big banks, saying their request to collectively negotiate over digital wallet access to the iPhone will compromise the handset's security, reduce innovation and blunt Apple's entry into the payments market in Australia.

In a sign of growing acrimony between the world's largest company and the Commonwealth Bank of Australia, National Australia Bank and Westpac Banking Corp, Apple told the Australian Competition and Consumer Commission that "allowing the banks to form a cartel to collectively dictate terms to new business models and services would set a troubling precedent and delay the introduction of new, potentially disruptive technologies".