Notion investigates claim of customer data offered for sale

Notion

Notion says it is aware of public claims that a large dataset of Notion data was offered for sale on X and Breached Forums, and its security team investigated with a third-party partner.

Notion investigates claim of customer data offered for sale is listed on TechiSeek as News from Notion. The advertiser destination website is notion.com. First listed on 12 September 2026. This TechiSeek page is the indexable listing record; visiting the advertiser site uses a separate outbound link.

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