Aeon announced on October 21st that it had detected unauthorized access by a third party on some websites of its group companies. The company stated that it is currently conducting security checks, investigating the cause, and taking steps towards recovery.

According to Aeon's announcement, security checks are being conducted on the websites where unauthorized access was confirmed, and they are also investigating whether personal information has been leaked. They plan to disclose the investigation results on their official website as soon as they are confirmed.

Upon checking the websites of Aeon Group companies around 4:50 PM on October 21st, official websites such as Aeon Retail and Aeon Big experienced timeouts, making it impossible to retrieve pages.

However, Aeon has not yet disclosed the specific names of the websites affected by the unauthorized access, the attack methods, or the scale of the damage.