SecurityWeek reports that Southern Company is notifying roughly 400,000 customers that…

SecurityWeek reports that Oracle Health says personal and medical information from its legacy Cerner systems was compromised in a cyberattack. The data may have included names, Social Security numbers, and medical record details such as diagnoses, medicines, test results, images, and care information. People affected should watch for suspicious account activity and follow any notice from Oracle Health or their healthcare provider.

Infosecurity Magazine reports that unauthorized access to Denmark’s Central Register of Persons exposed names, addresses and CPR numbers for about 8.8 million registered people. The government said the access happened through a private Danish company’s legal access to the system. People should watch for unusual account activity, use unique passwords, keep devices updated and be careful if anyone asks for sensitive information by email, phone or other channels.

The Record reports that Ukraine’s largest grocery store chain, ATB, confirmed a cyberattack after hackers posted an extortion demand on its website and claimed they had stolen data from millions of customers. The hackers said the data included names, phone numbers, email and physical addresses, password hashes, and employees’ passport information. People who shopped there should watch for phishing, change reused passwords, and monitor accounts for suspicious activity.