Tangem Wallet: custody score 66%
Tangem · Multi-asset · checked 2026-11-05. 56 of 85 points from sourced facts.
Score, input by input
| Input | What we found | Points | Source |
|---|---|---|---|
| Supply chain and authenticity | In the app: The Tangem app verifies the card and its firmware automatically before any operation. | 10/10 | source |
| Supply chain and authenticity | Published: Authorized resellers listed on tangem.com. | 5/5 | source |
| Supply chain and authenticity | Strong: Monolithic chip card: Tangem says the card and its software can't be physically modified. | 5/5 | source |
| Supply chain and authenticity | No incident: None on record. | 5/5 | — |
| Key protection | Certified (EAL): Samsung secure element certified EAL6+. | 6/6 | source |
| Key protection | Closed, audited: Card firmware is closed and can't be updated; audited by Kudelski (report not public). The app is open source. | 2/9 | source |
| Signing safety | No screen: No screen: you review the transaction in the phone app, then tap the card. | 0/15 | source |
| Customer data exposure (36 months) | None found: No customer-data breach found for the last 36 months. | 15/15 | |
| Incident record (24 months) | Flaw, no losses: July 2026: Ledger Donjon showed a lab laser attack that resets a card's password; Tangem can't patch it, and says the risk to ordinary owners is near zero. | 8/15 | source |
Incidents
- 2026-07-10 Lab laser fault-injection attack resets the card password (physical access, ~$250k equipment); unpatchable. source
Where to buy safely
- Buy from the maker: tangem.com.
- Resellers: Authorized resellers listed on tangem.com. source
- On arrival: check the packaging, run the genuine-device check, and reject any device that already has a PIN or recovery phrase set.
Keep it away from your bots
A hardware wallet is the vault. Don't connect it to a trading bot, an API key or an agent wallet: give the bot a separate trading float and sweep profits back to the vault's address. How to split vault, float and sweeps. Set up Tangem Wallet as cold storage, step by step.
Questions
Is Tangem Wallet safe?
Tangem Wallet scores 66% on our custody score (56 of 85 points from sourced facts, checked 2026-11-05). Weakest point: No screen: you review the transaction in the phone app, then tap the card.
Has Tangem had a security incident?
July 2026: Ledger Donjon showed a lab laser attack that resets a card's password; Tangem can't patch it, and says the risk to ordinary owners is near zero.
Where should I buy Tangem Wallet?
From the maker's store (tangem.com). Resellers: Authorized resellers listed on tangem.com. On arrival, run the genuine-device check and reject any device that already has a PIN or recovery phrase set.
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