Unknown hackers hack into NTT, Japans biggest company and access Japan’s defense data

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Japan’s biggest company, Nippon Telegraph & Telephone (NTT)  hacked, unknown hackers steal Japan Defense ministry data

Nippon Telegraph & Telephone (NTT) one of Japan’s biggest companies and the 64th biggest company in the world, according to the Fortune 500 list, was hacked into by unknown hackers. The hackers exploited a vulnerability to gain access to NTT’s internal servers and stole information on 621 customers from its communications subsidiary, NTT Communications.

The hack attack took place on May 7 and NTT discovered the intrusion on May 11, 2020. Don’t go by the small figure of 621 customers hacked as these 621 customers themselves are big businesses and their own customers could be compromised in the NTT hack attack. The hack attack on NTT has also affected Japan’s Self-Defence Forces- the military arm of Japan.

According to the Defence Ministry of Japan, the NTT hack attack exposed 100 files belonging to Self-Defence forces. These 100 datafiles could give access to Japan’s Ministry of Defence firms. According to Kyodo, the compromised data does not appear to be secret, but leaks still may undermine the defense ministry’s communications network.

Japan’s Defense Minister Taro Kono has already called for a thorough investigation into the NTT hack attack. “NTT Communications has informed us about this. We would like them to conduct a thorough investigation,” Kono said at a press conference. “We want to make sure that they comply with all the rules established by the Defense Ministry to avoid leaks,” the minister said in a reference to the recent increase in cyberattacks on companies involved in the defense industry sector”, he added.

The unknown hackers targeted the NTT servers in Singapore and used it as a base to access the NTT servers in Japan and NTT Communications’ internal servers. NTT said it took down the hacked systems as soon as it learned of the intrusion by hackers.

Unknown hackers are operating a hacking scheme against Japan’s defense assets it seems. Earlier in the year, unknown hackers hacked into the servers of Mitsubishi Electric and stole details of Japan’s upcoming hypersonic missile system. You can read about it here.

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