CustodyStress
Archive › Multisig quorum failure
Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-01198

Customer withdrawals were suspended for 36 hours while the hardware failure was

Survives
Case description
A crypto custody provider that used a distributed key management system experienced a quorum failure in September 2023 when a key server in one of three geographic jurisdictions suffered a hardware failure simultaneously with network issues at a second site. The provider's 2-of-3 signing requirement could not be satisfied with two sites unavailable. Customer withdrawals were suspended for 36 hours while the hardware failure was addressed. No funds were lost, but customers with time-sensitive transactions were unable to access their Bitcoin during the outage.
Custody context
Stress conditionMultisig quorum failure
Custody systemInstitutional custody
OutcomeSurvives
DocumentationUnknown
Year observed2023
CountryInternational
Structural dependencies observed
Multi-party coordination
Outcome interpretation
Access remained possible under the reported conditions.
Source
Publicly Reported
Evidence type
News article
Related cases involving multisig quorum failure
77 cases involve multisig quorum failure 10 cases involve institutional custody View archive statistics →
This archive documents observed custody survivability failures. It does not attempt to document all Bitcoin losses or security incidents. Submit a case
← All cases
Framework references
Terms guide
Survives
Access remained possible under the reported conditions.
Constrained
Access remained possible, but only with delay, dependence, or significant difficulty.
Blocked
Access was not possible under the reported conditions.
Indeterminate
There was not enough information to determine the outcome.
Single-person knowledge
Recovery depended on information or capability held by one individual who was unavailable.
Institutional dependence
Recovery depended on a third-party institution or service that was inaccessible or uncooperative.
Documentation gap
Recovery depended on instructions that were missing, incomplete, or unclear.
Authority mismatch
The person with legal authority to act did not have operational access, or vice versa.