The disruption appears tied to miners updating software rather than a security breach, with the Zcash Foundation saying it found no evidence of an exploit.
Zcash briefly experienced network instability as miners upgraded their software, the Zcash Open Development Lab said. The Zcash Foundation added that it found no evidence of an exploit, indicating the episode appeared to be linked to the upgrade process rather than a successful attack on the network. Such periods can occur when miners move between software versions, temporarily affecting network coordination until the upgrade is completed.