Product record · Yoroi
Yoroi Browser Extension
Yoroi self-custodial Cardano browser extension, now within the wallet's announced wind-down phase.
- Launch
- —
- Sales
- not_applicable
- Support
- unknown
- Variants
- —
- Confidence
- high
- Last verified
- 2026-08-20
Material concerns
Custody and recovery assumptions
Active support, evidence verification, or product type is not a safety endorsement. Missing custody or recovery metadata is shown as unknown rather than inferred as self-custody.
- Custody model
- self_custody
- Key-management model
- browser_local_encrypted_private_keys
- Independent recovery
- Unknown / requires evidence review
- Material lifecycle / security events
- Relevant event recorded in the canonical timeline
Lifecycle
Product timeline
Yoroi Wallet transitioned to SecondFi
Product: Yoroi Browser Extension
SecondFi announced that Yoroi Wallet had officially transitioned into SecondFi and that the existing Yoroi application would update into the SecondFi experience while preserving the user's self-custody wallet continuity.
SecondFi security incident exploited per-transaction signature flaw
Product: Yoroi Browser Extension
SecondFi reported that between June 21 and June 23 external attackers exploited a cryptographic flaw in per-transaction signature generation, resulting in approximately 16.1 million ADA being stolen from 374 wallets.
SecondFi announced normal operations would not resume
Product: Yoroi Browser Extension
SecondFi announced that it would not resume normal operations even after security audits and asked all users to migrate away, with the team's continuing role limited to asset recovery work.
Sources