Slack (Salesforce)

Slack and its parent Salesforce filed a lawsuit against Microsoft in a LONDON court (April 2026), accusing it of illegally bundling Teams with Office to squeeze out competition — the same underlying conduct that got Microsoft investigated for antitrust violations decades earlier with Internet Explorer. Meanwhile, Slack has been named as a source of stolen data in at least one other incident documented in this tracker (ShinyHunters claimed to have taken files from Bumble's Slack and Google Drive in Jan 2026 after a contractor account was phished; Bumble has not confirmed that scope) — the workplace chat tool millions of employees use daily can become the way into an entirely different company's systems.

• Severity
• Evidence tierUnassigned
• Claims confirmed
• Last verified2026-08-04

Case status. Private litigation; no sources are on file yet, so no legal tier is assigned.

Primary source. None recorded — Unverified - heuristic first draft.

Arbitration

Not independently confirmed this pass — standard binding arbitration + class action waiver expected.

Contacts

Privacy contact. Not recorded.

Legal notice. Not verified this pass. If publicly traded: SEC Form 10-K cover page gives the official corporate address; the Secretary of State business-entity search in the state of incorporation gives the registered agent, which must accept service. If private: the state registered agent is usually the only reliable route.

Mailing address. Not recorded.