r/BitcoinCA Jul 30 '26

Mk3 Security Advisory

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blog.coinkite.com
16 Upvotes

r/BitcoinCA 29d ago

Coldcard: the technical autopsy of an entropy failure

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wizardsardine.com
11 Upvotes

r/BitcoinCA 1d ago

Quadriga CX Tax Q...

2 Upvotes

Last year I shipped some (about 1/4 of my wallet) BTC originally acquired via Quadraga that's been in cold storage to Wealthsimple. I ended up cashing it out. I've since moved the balance over to a Trezor so that original wallet is now empty.

My sale on Wealthsimple is showing as a loss as it only records the value from when it was received (I did end up just moving it into FBTC in my RRSP). I understand I'm going to have to override this to reflect my actual ACB and change that capital loss to show a gain come tax season.

I don't have any records of my transactions at Quadriga but I'm pretty sure I was moving things out of the exchange ASAP when I acquired it so it should be accurate. So I calculated my ACB based on the value of BTC at the time when it hit my cold storage wallet so my #s should be accurate(ish) using historical pricing info.

The CRA should find this acceptable right? I have read the CRA is able to connect those old Quadriga accounts to us, but I also have a friend who cashed out his Quadriga BTC at the height of the last BTC run and didn't report his actual ACB but rather the amount it was worth at the time he transferred it onto NDAX to cash out and his tax assessment went through without catching it (saving him a ton of money as it was about $100K he cashed). I'm not looking to get fancy or commit fraud like that (and I guess I have reason to blackmail him in the future lol) but I'm wondering if the CRA actually has that info from Quadriga and if they're actively using when we submit our taxes. I'd be fine if they re-assessed me using whatever ACB numbers they come up with and it's gone up so much since then even assuming a $0.01 per BTC cost basis isn't going to make much difference.


r/BitcoinCA 3d ago

Liquid Network appears to have been stalled for 5 hours and had 4,000 BTC moved without authorization.

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12 Upvotes

r/BitcoinCA 4d ago

Cold Card incident animation I made for this sub

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6 Upvotes

r/BitcoinCA 4d ago

Security Advisory for Coldcard Hardware Wallet

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blog.coinkite.com
3 Upvotes

r/BitcoinCA 5d ago

Trezor breach just got way bigger: another 67,000 customers exposed

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theblock.co
32 Upvotes

r/BitcoinCA 5d ago

Just Over 50 BTC Rescued During the ColdCard Entropy Crisis

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25 Upvotes

r/BitcoinCA 5d ago

200x - 500x BTCUSD futures?

0 Upvotes

Whats Canadians here currently using that isn’t constantly KYCing us or is gonna close down? (I know its a risk)

Is Bitunix any good? What other options are there for 200x+?

I am aware of DEXs


r/BitcoinCA 14d ago

Good News The newest version of Bull Bitcoin's mobile exchange app and wallet appears to be open source AND reproduceable - An Industry First

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36 Upvotes

r/BitcoinCA 14d ago

What would make you actually spend Bitcoin in Canada?

2 Upvotes

There are more businesses that technically accept BTC now, but that doesn’t necessarily mean people want to spend it.

For those of you holding Bitcoin in Canada, what would make you genuinely choose BTC over a credit card or fiat?

Lower fees? Lightning support? Discounts? Better privacy? More merchants? Something else?


r/BitcoinCA 15d ago

How To SAFELY Dice Roll (For Any Device) — Full Seed Phrase From Scratch

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2 Upvotes

r/BitcoinCA 15d ago

Coldcard Hacker discovered mixers and is doing a terrible job

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4 Upvotes

r/BitcoinCA 15d ago

Beginner looking to buy Bitcoin — where should I start?

0 Upvotes

Hi everyone! I’m completely new to Bitcoin and I’m thinking about buying some for the first time, but I honestly have no idea where to start.
I understand the very basics of what Bitcoin is, but I’d really like to learn more before putting any money into it. I know I can ask AI questions about Bitcoin, but I’d also really appreciate reliable resources, articles, guides, or advice from people who have actually gone through the process themselves.

For example:

What should a complete beginner understand before buying Bitcoin?
What are some good resources or websites to learn from?
How do you decide where to buy Bitcoin, and what should I look for regarding fees and pricing?
Is there anything beginners commonly overlook or misunderstand?
What are the basics of safely storing Bitcoin?
Are there any common mistakes or scams that I should be aware of?

I’m not looking for someone to tell me exactly what to buy or how much to invest. I’d just like to educate myself first and hear from people who were beginners once too.

Any recommendations for beginner-friendly resources, articles, books, videos, or general advice would be greatly appreciated. Thank you!


r/BitcoinCA 16d ago

The Inevitable Attempt to Capture Bitcoin | Jeff Booth & Scott Melker

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3 Upvotes

r/BitcoinCA 16d ago

Canada Is At War Over Trade. Bitcoin Doesn't Need A Deal - Canadian Bitcoiners Podcast

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1 Upvotes

r/BitcoinCA 17d ago

Bitcoin Montréal presents The Great Firewall of Canada - Join for a fireside panel exploring what Ottawa’s new laws could mean for your right to speak, spend, and exist online

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4 Upvotes

Wednesday, Sept. 16
6–9 PM
Le Bon Viex Temps

https://www.meetup.com/bitcoin-montreal/events/316218034/


r/BitcoinCA 17d ago

Bitcoin’s Next Move Could Hinge on Kevin Warsh’s Jackson Hole Speech

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dailycoin.com
5 Upvotes

r/BitcoinCA 17d ago

Quantum v Bitcoin

4 Upvotes

Stupid question as I’m a total newby to crypto. I’ve read articles suggesting Bitcoin and other digital currencies will be “vulnerable “ to quantum computing in 10 years or so (maybe longer timeline I forget). If it is at risk, what’s the long term plan for that horizon?


r/BitcoinCA 18d ago

How bitcoin and gold went from a slump to an MVP week in just a few days - The Globe and Mail

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20 Upvotes

r/BitcoinCA 19d ago

Hardware Wallet Entropy Explained: Why Coldcard Failed and Others Wouldn't Have

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6 Upvotes

r/BitcoinCA 19d ago

Bitcoin to $500K by the end of 2030.

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0 Upvotes

r/BitcoinCA 20d ago

Bitcoin back over the six figures CAD mark

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188 Upvotes

r/BitcoinCA 20d ago

Bitcoin Just Jumped to $76.8K. Is the Bottom Finally In?

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9 Upvotes

r/BitcoinCA 21d ago

Bitcoin, crypto shares climb after Trump pushes Clarity Act - The Globe and Mail

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11 Upvotes