An investigation has been launched into a major security breach after a child abuse survivor’s private details were uploaded to someone else’s myGov account.

Confidential information including the person’s address, phone number, bank details and Centrelink number were shared with a complete stranger.

Their application to the national redress scheme, outlining the sexual abuse they suffered, was also shared with another survivor.

Social Services Minister Anne Ruston has apologised for the bureaucratic bungle and breach of trust.

“I regret most sincerely that this error has occurred and that any trauma or distress that has been caused to the person whose information has been incorrectly uploaded,” she told a Senate hearing on Thursday.

“I believe those sentiments were passed on to the person directly by the officer who contacted her, but yes, I deeply regret what has happened.”

The person has already been contacted by a specialist officer but the minister said she would also be happy to speak to them directly.

Despite the privacy breach, Senator Ruston insisted it remained safe for people to enter the national redress scheme for institutional child sexual abuse.

“I can’t reiterate enough that we take the confidentiality and privacy of individuals who are seeking to gain redress through this scheme very, very seriously,” she said.

The information has since been removed but has left victims and survivors of child sexual abuse reeling.

The federal opposition fears there could be many more breaches and has called for an investigation into how the incident happened and how often it has occurred.

Senior public servant Liz Hefren-Webb confirmed an investigation had been launched.

“We absolutely apologise without reservation to the person it has affected,” she said.

Survivor organisations have not been included in the department’s initial investigation.

-AAP