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Type Incident

Microsoft · Data breach

Data breach at Sony-owned internet provider compromises 2.6 million customer records

1 source

At a glance

Low
30-day window, from the last update
Evidence-weighted, not popularity
Why Low

Low rather than Medium: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Microsoft Teams, treat it as Medium.

Briefing

  • Do not treat uncorroborated claims as confirmed breaches.

Questions to ask IT

  • Do we use Microsoft Teams, and has anything unusual been seen on it?
  • Would our monitoring spot an attack like this, and who would we call if it did?

Next steps

  1. Confirm whether this affects systems or suppliers in your estate

Summary

  • Data breach at Sony-owned internet provider compromises 2.6 million customer records

Read the original reportHelp Net Security(opens in a new tab)

Products and services involved

Pulse

Last checked 2d ago · Recheck overdue since 7 Nov 2026, 07:06 UK time · 1 quiet check collapsed

  1. Story28 Oct 2026, 11:14 UK time · 28 Oct

    Linked reporting from Help Net Security (independent original reporter).

    Read source (Help Net Security)

1 entry so far. The timeline chart appears once this story has more history.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ClaimedHeadline60% confidence

    Data breach at Sony-owned internet provider compromises 2.6 million customer records

  • ProbableSummary fact75% confidence

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