While the press release issued doesn't include many details regarding the attack timeline, Japanese outlets, including
Mainichi and
NHK, said the attackers had access to Panasonic's servers between June and November, as first reported by
The Record.
Furthermore, they gained access to customer and employee sensitive information until Panasonic spotted the malicious activity on November 11.
The attack on Panasonic's server is part of a long series of other incidents involving Japanese companies in recent years.
Kawasaki,
NEC,
Mitsubishi Electric, and defense contractors
Kobe Steel and Pasco have also disclosed security incidents and, in some cases, even data leaks.