More than 1,600 Dodo and iPrimus home internet and mobile customers have been affected by a hack of the telco's email and mobile services, the company has confirmed.

Vocus, the parent company that operates Dodo, announced in a statement on Saturday evening that it had detected "suspicious activity" in its email systems on Friday.

"To contain the issue, we progressively suspended email services temporarily for Dodo and iPrimus customers and restricted email services for Commander customers," a Vocus spokesperson said in the statement.

"Our initial investigation has revealed unauthorised access to approximately 1,600 email accounts, leading to unauthorised SIM swaps on 34 Dodo Mobile accounts.

"We have worked with impacted customers to reverse these SIM swaps and we continue to monitor t

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