However, the four companies remain reticent about embracing Bitcoin due to regulatory concerns.
The news comes after CBA went public with its trials of peer-to-peer fiat and cryptocurrency exchange Ripple for transferring payments between its subsidiaries. Westpac is further along than ANZ in its plans for using Ripple, being in the early stages of a proof of concept using the Ripple network, in which staff are making low-value international payments to two other countries.
ANZ, meanwhile, said it has had a number of constructive conversations with Ripple and is in the process of investigating the potential benefits the model could offer its customers.
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