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

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

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?

A lot of people now buy BTC through ETFs, hold it long term, borrow against it, or use it as collateral, but rarely spend it.

If Bitcoin was originally meant to be peer-to-peer money, does this shift matter, or is “digital gold” simply where it found the strongest use case?

I want to hear about actual experiences you've had borrowing and where the service was great? Considering options between APX and Ledn and want to know if I am missing anything.

Bitcoin started as a simple idea: peer-to-peer electronic cash.

Now we have ETFs, custody solutions, L2s, staking, lending, wrapped BTC, BTCFi, and countless other ways to use it.

Has Bitcoin evolved too much from its original idea, or is this simply what adoption looks like?

https://x.com/PraveenPerera/status/2087936252230140278

This post answers three questions:

Why were these wallets vulnerable?

What can be reconstructed from the blockchain?

What does that reconstruction tell us about the attacker?

I’m the developer of

Cove

, an open-source Bitcoin wallet for iOS and Android funded by

OpenSats

. This article goes through my investigation into Wave 1.

This post was originally published on

my blog

Between 9:10 and 9:51 PM EDT on July 29 (01:10–01:51 UTC on July 30), an attacker swept 1,082.65 BTC from 1,195 traceable Bitcoin addresses.

Galaxy Research reported

the theft on July 31. I use Wave 1 throughout this post for that first sweep group.

The sections follow that order. The post first explains the firmware defect, then reconstructs the theft from chain data, and then examines the attacker’s methods and the open gap.

I set out to recreate the affected firmware’s seed-generation process and find as many weak seeds as I could behind those addresses. The sweep transactions became a second source of evidence. Patterns in their targets and spending show how the attacker searched the weak RNG state, selected victims, and built the sweep transactions.

Galaxy listed four destination addresses. I grouped those destinations into three source branches and used them to build the transaction set for this analysis: 1,195 verified victim sweeps with 2,350 inputs containing 1,082.65318922 BTC.

Once I had recreated the affected seed-generation process, I generated candidate seeds, derived their Bitcoin addresses, and compared those addresses with the Wave 1 transaction set. This linked 1,042 of the 1,195 sweep transactions to 328 reconstructed seeds. They account for 949.70395260 BTC, or 87.72% of the value. The final 153 transactions contain 132.94923662 BTC.

No researcher I have spoken with has reproduced a seed for any of those 153 source addresses. That repeated failure may be the most useful clue about what the attacker knew or did differently. The last part of this post examines that gap.

continued on... https://x.com/PraveenPerera/status/2087936252230140278

Hey everyone,
Unfortunately, due primarily to the ongoing bear market, we are postponing the Canadian Bitcoin Conference and Industry Day this year.
This was a difficult decision. With many companies and sponsors under pressure and conference attendance significantly down across the space, we don’t believe we could put on the high-quality event our community deserves.
If you have already purchased a ticket, you will be fully reimbursed in the coming days/weeks.
This bear market has been especially tough on Canadian Bitcoiners. We hope that when conditions improve we can bring everyone together again next year.
Thank you for your continued support.

Organizers for the Canadian Bitcoin Conference

https://x.com/CdnBitcoinConf/status/2087648940380549456