In the Public Information Bulletin of the Warsaw City Hall, there was information about the data of property owners being sent out in an email by mistake.

Content of the message:
“The Mayor of the Capital City of Warsaw informs that we mistakenly sent to unauthorized persons the numbers of land and mortgage registers, which are included in the real estate price registers. The security incident consisted in the fact that the IT system operated incorrectly and generated a list containing unnecessary, redundant information - land and mortgage register numbers ".

Attached to the above message was an inventory of real estate, which was sent to four recipients on MAy 27, June 27 and June 29, 2021. The first three messages had a 28 page list attached, while the emails of June 29th have contained as many as 55 pages, data containing more than 40 addresses.

It should be emphasized that a person with access to land and mortgage register number has the opportunity to obtain personal data of the property owner, i.e. name, surname, PESEL number, parents’ names. It goes without saying that such data can be used to take out a quick loan or rent a property.

According to TVN Warszawa, officials suggest that the affected persons set up an account at the Credit Information Bureau. Thanks to this, they will be able to monitor whether an unauthorized person is trying to get a loan using their personal data.