What Happened
In October 2025, Swedish security company Verisure announced a data breach affecting approximately 35,000 current and former Alert Alarm customers in Sweden, where Alert Alarm is a Verisure subsidiary. The breach occurred through an external billing partner’s compromised system rather than Verisure’s main infrastructure, which remained secure. Cybercriminals gained unauthorized access to sensitive personal data including full names, physical addresses, email addresses, and Swedish social security numbers. The incident was discovered through dark-web monitoring and announced on October 17, 2025, just one week after Verisure’s highly publicized initial public offering on the Swedish stock exchange, raising concerns about the timing’s impact on investor confidence. Verisure notified authorities and committed to keeping affected customers informed as the investigation continued.
