Microsoft still working to fix Exchange Online mailbox access issues
2026-04-03T13:23:29Z•3ffb0d8f539f21b735f4e93d29ffcb7dae4a8a172ea51ad84abc17d8382e8757
Claude CodeDrift ProtocolEuropean CommissionExchange OnlineGitHubHandala hacktivist group (Iran-linked)IP reputationMicrosoftNorth KoreaOutlookProgress ShareFileStrykerTeamPCPVidarWindows 11cloud hackcryptocurrency theftdata-wipingextortionforce upgradeinfostealerinsider threatmail interceptionpre-auth RCEresidential proxies
What happened
BleepingComputer news roundup covering multiple active incidents and disclosures: Microsoft is investigating ongoing Exchange Online and Outlook delivery/access issues and is force-upgrading unmanaged Windows 11 24H2 devices to 25H2; CERT-EU attributed a European Commission cloud compromise to the TeamPCP group affecting ~30 EU entities; threat actors are abusing the leaked Claude Code to distribute Vidar infostealer via fake GitHub repos; a former engineer pleaded guilty to locking hundreds of Windows servers in an extortion attempt; Drift Protocol suffered a ~$280M takeover; researchers warn
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- bleepingcomputer
- Record identifier
- 3ffb0d8f539f21b735f4e93d29ffcb7dae4a8a172ea51ad84abc17d8382e8757
- Enrichment time
- 2026-04-03T13:23:29Z
- AI-assisted enrichment
- Yes
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