COLDCARD (@COLDCARDwallet) — Twitter Score 74 out of 1000

COLDCARD is a Bitcoin-only hardware wallet product that uses dual secure elements and open-source firmware to deliver air-gapped key storage. COLDCARD's Twitter Score is 74 out of 1000 (a Good rating) as of October 2026, ranking #11,100 (top 5%) among 498,348 tracked accounts.

COLDCARD is made by Coinkite, a Bitcoin hardware company founded in 2012 that also produces OPENDIME, BLOCKCLOCK, SATSCARD, TAPSIGNER, and other devices. The wallet has been in production since 2017 and is designed exclusively for Bitcoin, distinguishing itself from multi-asset hardware wallets through its dedicated air-gapped architecture and focus on physical security. Its firmware is fully open-source, allowing independent review of the codebase.

COLDCARD runs on COLDCARD firmware, which underpins its security model alongside dual secure elements. In 2020, Wired reported that Ledger researchers demonstrated a physical fault-injection attack against the Mk2 model, a vulnerability that Coinkite addressed in the subsequent Mk3 revision. The wallet also supports metal seed backup via SEEDPLATE, an accessory offered by Coinkite for durable offline seed phrase storage. COLDCARD has accumulated 67,312 followers as of October 2026 and 18,606 posts on the platform, and has been mentioned by 686 accounts a total of 3,098 times.

Who follows COLDCARD on X?

The accounts that follow COLDCARD include 323 founders, 37 angel investors, 229 influencers and 3 VCs, among them Andrew Kang, Udi Wertheimer, Adam Back, mikedemarais.eth, Matthew Graham and Cuy Sheffield.