GitBook breached: attackers got into parts of GitBook's infrastructure on 2 Nov; docs sites and editor taken offline, customer data impact unknown

GitBook (hosted documentation platform) says on its status page that on 2 Nov 2026 it detected unauthorized access to parts of its infrastructure, contained it and took services offline. Published docs sites and the editor went down from about 05:16 UTC on 3 Nov; they were mostly back by 12:32 UTC, with some published sites still degraded. GitBook has not yet said whether customer data was affected, and how the attackers got in is unknown. Separately, on the morning of 2 Nov, Trade.xyz reported unauthorized changes to its GitBook-hosted documentation. It restored the docs by 14:15 UTC and told users not to click links in them. Neither company has said the two events are connected.

Summary written from the sources below. Check the originals before acting.