NTT Docomo has suspended My docomo and the Docomo Online Shop for emergency maintenance, the carrier said on November 5, leaving customers unable to complete procedures through either service. Docomo judged there was a high possibility its own servers had been accessed improperly from outside, and stopped both services to find the cause.
The outage has continued since around 1:05 a.m. on November 5. Posts about My docomo appeared on X from the 1 a.m. hour, shortly after the stop began, with users writing that the service was under maintenance and that it opened but could not be viewed.
Docomo is investigating the scope of the impact and the cause while working toward restoring the services. A notice posted at 9 a.m. did not give a restart time.
The carrier urged customers who need something urgently to consult their nearest store, saying procedures can sometimes be handled at Docomo shops and electronics retailers.
A second shutdown, weeks after the last
On October 22, Docomo said it had finished emergency maintenance carried out as a precautionary security measure and restored service, covering its corporate site, My docomo and the Docomo Online Shop. At that point the carrier said it had not confirmed any improper access to its sites.
The November 5 suspension follows a run of intrusion disclosures at Japanese companies and public systems. MUJI's operator has said card numbers and other data on about 1.09 million MUJI Card accounts may have leaked after improper access, and Bic Camera Group has said email addresses and other data on about 14.9 million items may have leaked through improper access to a contractor. Sega-related systems and the e-Tax tax filing service have also been taken offline over suspicious activity.