10/13/2026
A simple leaked password "123456" linked to a former employee opened the door to Denmark’s national population database. Over 21 days, attackers ran millions of queries through an IT vendor's account, exposing data for nearly 8.8 million people.
The breach went unnoticed until an unusually high bill for 14 million search requests flagged the suspicious account activity.
This case highlights why password security and account monitoring are critical for every organization. Allowing weak passwords or failing to remove former employee access leaves major security gaps.
A series of security failures, including a very weak password, exposed almost 9 million people’s personal information.