Michael suspects personal information he submitted to rent application platforms was leaked online. And analysis shows millions of documents may also be at risk

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Michael* has spent the past two months trying to get his digital identity back.

The 47-year-old Victorian schoolteacher was in the process of moving to a new town and applying for rental properties online. Around this time – and unbeknown to him – his mobile phone number was transferred to someone else.

The rise in real estate tech means renters often hand over huge amounts of revealing information to digital third parties – at great risk

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Would you trade your data privacy and security for housing? Thanks to the rise in real estate technologies, renters often have no choice but to hand over huge amounts of revealing information to digital third parties just to have somewhere to live. All the while we are told: trust us, we take your privacy seriously.

But recent Guardian reporting has revealed that seven popular “rent-tech” platforms have serious security vulnerabilities, leaving millions of documents containing personal information of renters exposed on the open web for years. When they were alerted to the risk, only two of the seven companies responded to say they would put additional security measures in place. Is this what taking renter privacy seriously looks like?

Exclusive: ‘This is a blatant and disturbing disregard for the law and for people’s security,’ digital rights advocate says

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Australian platforms used by real estate agents to upload documentation for renters and landlords are leaving people’s personal information exposed in hyperlinks accessible online.

An analysis of seven rent platforms provided to Guardian Australia by a researcher, who wished to remain anonymous, revealed millions of leasing documents could be accessed by threat actors.