r/coldcard is a subreddit with 6k members. The most common kinds of discussions are pain & anger and advice requests, and the community frequently discusses coldcard, wallet, crypto, security, and seed.
SECURITY ADVISORY ⚠️ check blogpost.
Official COLDCARD subreddit by Coinkite. Help with COLDCARD Q, Mk5 and Mk4; Bitcoin self-custody, air-gapped signing, PSBTs, multisig, NFC, Seed Vault, BIP-85, firmware, and security. Never share a seed phrase, private key, backup, PIN, passphrase, order details, or personal information. Staff will never contact you first or ask for secrets.
Popular Themes in r/coldcard
#1
Pain & Anger
: "New ColdCard had fingerprints on screen when I opened it."
5 posts
#2
Advice Requests
: "Considering getting a Coldcard, is it alot better than Trezor?"
4 posts
#3
Money Talk
: "Black Friday Sale (25% Off with Bitcoin)"
4 posts
#4
Solution Requests
: "Best privacy-crentered read-only mobile wallet?"
3 posts
#5
News
: "Coldcard Delta PIN Bitcoin Private Key Recovery Vulnerability - Update Your Firmware"
1 post
Popular Topics in r/coldcard
#1
Coldcard
: "Coldcard Q showed “Danger/Caution” and “Bricked” on boot. Packaging looked tampered. Support says it’s fine… is this normal?"
172 posts
#2
Wallet
: "Sparrow + Coldcard (air-gapped) — worried about Wallet settings"
54 posts
#3
Crypto
: "Sparrow + Coldcard (air-gapped) — worried about wallet settings"
37 posts
#4
Security
: "PSA : Beware of this malicious app on the Apple App Store"
28 posts
#5
Seed
: "Setting up coldcard Q - Dice Seed"
21 posts
#6
Q
13 posts
#7
Passphrase
: "Different account or Passphrase protected wallet for storing non-kyc"
13 posts
#8
Cold Card
13 posts
#9
Sparrow
12 posts
#10
Multisig
: "Multisig questions"
12 posts
Flair Used in r/coldcard
#1
Support
: "PSA: Coldcard Mk4 BRICKED by the new emergency firmware hotfix (seed.py crash). Irony at its finest."
28 posts
#2
SECURITY
: "Coinkite is done for - Here is why"
21 posts
#3
Coinkite News
: "Mk3 Security Advisory"
10 posts
#4
Wall of Love
: "Big ups to this sub, you all saved my stack."
7 posts
#5
HELP
: "What are the best hardware wallet options now?"
7 posts
#6
Feature request
: "Coinkite next steps"
5 posts
#7
SHOW & TELL
: "Coldcard Hacker discovered mixers and is doing a terrible job"
4 posts
#8
COLDCARD Q
: "Do you guys still trust Coinkite?"
4 posts
#9
SETUP
: "Dice Roll Users"
3 posts
#10
WALLET SOFTWARE
: "Coldcard MK4 - are wallets generated with 100% dice at risk?"
2 posts
Member Growth in r/coldcard
Yearly
+1k members(27.8%)
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About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/coldcard, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: August 28, 2026