'123456' password was the only thing standing between hacker and data of 8.8 million people

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  • Attackers reportedly accessed Denmark’s population registry through a third-party company using weak credentials
  • Data on roughly 8.8 million individuals may have been exposed, including CPR identification numbers
  • Breach highlights severe third-party security failures, with reports citing passwords like “123456”

Data held by the Danish national population registry was allegedly protected by a very strong, very difficult-to-crack password: 123456.

This claim was made by a person who allegedly broke into the registry in September 2026, accessing data on 8.8 million people.

Might as well been without a password

The Danish Central Register of Persons (CPR) is the country’s national population registry that maintains identifying information about people living in Denmark, including their names, addresses, birth dates, citizenship, and marital status.

Each individual is assigned a unique 10-digit CPR number which is widely used in healthcare, taxation, banking, and more.

In a press release, CPR disclosed that someone gained unauthorized access to...

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