Amsterdam-based travel app Polarsteps experienced a significant data leak impacting over 23 million users. For months, sensitive user data including photos, travel routes, and crucially, home addresses were publicly accessible. The breach allowed anyone with a link to view personal information, raising serious privacy concerns. Polarsteps discovered the issue and has since secured the data, stating the vulnerability stemmed from a misconfiguration of their system. The company is notifying affected users and cooperating with authorities. Experts warn this incident highlights the importance of robust data security measures for travel apps managing sensitive location and personal details. This leak represents a substantial risk of potential stalking or burglary for those affected.