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November 11, 2024, 08:52:24 AM *
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1181  Bitcoin / Bitcoin Discussion / Re: Several developers, miners, and researchers reported that Bitcoin mining develop on: September 28, 2023, 11:44:42 AM
I'm also going to put out there that more then likely if a certain pool kept sending out invalid blocks other pools are going to put them on some sort of ignore list so they don't even have to even bother processing them. Yes, it would be a form censorship but there would be a certain point when the operators would want to stop wasting CPU cycles taking in a block just for it to be invalid.

As for making a difference to the BTC blockchain in general. Yes, a bit more BTC for the rest of the miners until the difficulty adjusted around the lack of that pool finding blocks.

-Dave
1182  Bitcoin / Development & Technical Discussion / Re: USB port blocker on: September 24, 2023, 03:46:08 PM
What's the point of these devices?
As far as their description, they would prevent connecting Pen Drives, Tablets and other USB to your computers....

Am I just stupid to not understand this but how is a stranger going to force his way to your computer, and how is a piece of plastic going to stop him?
- laptop in a cafe, that guy is going to run away with the damn laptop not do a 007 while you're farting your frappucino in the bathroom
- computer at home, so after breaking your door, stealing your watches and jewelry he will sit down, open your computer, perform a malware scan so his own malware is effective and then leave quietly and not touching your wallet at all.

Phil mentioned a set of pliers, but forget those one $10 wrench in the hand of a 120kg guy and you're going to undo every encryption yourself in seconds and that usb port is going to be the last hole you're worried about.

More or less to prevent attacks from these kinds of devices: https://shop.hak5.org/products/usb-rubber-ducky
If you come after me with a $5 wrench it's all known and there really is not much that can be done.
If you deploy a payload with one of those devices it could be a lot more difficult to figure out what the hell happened. And how to stop it from happening again.

-Dave
1183  Bitcoin / Development & Technical Discussion / Re: USB port blocker on: September 24, 2023, 01:22:22 PM
Most if not all PCs can disable the USB ports in BIOS and you can also set a BIOS password so that cannot be changed without the password.

Only the BIOSes for enterprise computers have that I think, like hp pro and Dell Optiplex. I have never seen such an option to disable the USB ports on BIOSes for consumer desktops or laptops. Also I think it's a relatively new setting so it probably won't be on some workstation from 2008.

It's been around since at least 2011. So we are talking PCs that are 12+ years old at this point.




The problem you run into is that the PC has to have the PS/2 port 6-pin mini-DIN ports. Otherwise when you disable the USB then you don't have a keyboard.
Makes it REALLY hard to do stuff. So if you don't have the PS/2 ports a lot of times the bios does not give that option.

Sometimes is does have the option of only allowing USB for keyboard / mouse but that has it's own security implications.

-Dave
1184  Economy / Collectibles / Re: TESTING- Submersing paper wallets printed on water proof papers on: September 24, 2023, 12:23:53 PM
Thank you @krogothmanhattan for running these tests. By the way, I didn't know about this type of paper - but I also had never researched it.

I noticed that the tests you carried out were on laser printer paper. Or am I mistaken?

You motivated my research, and find a paper that says it works in inkjet: https://www.graytex.com/inkjet-ruff-n-tuff-paper.htm
Did you get to test this one?

  Hi thanks!  And correct this was all done on a laser printer. No I have not tested this one...If you have a spare paper from that company please let me know and you can send me a sample if you wish and I will add to the test. Cheers!

   

Free samples are available. They are TX based so probably easier for you to get some here then someone in the EU

https://www.graytex.com/graytex-faq.htm#samples

I know it's not that simple, but still think it would be interesting to see how the different papers deal with water from different parts of the country and world.

-Dave

1185  Bitcoin / Development & Technical Discussion / Re: USB port blocker on: September 24, 2023, 12:13:44 PM
Yeah if you have value say 2 btc it is worth being on its own pc backed up with seeds yada yada yada. and you only use that pc for 1 thing your btc wallet.


and have say 0.1 btc and some shit coins on a less secure setup of pc+phone+exchange.

Back in the day in New York City the 1970's.

 I used to carry:
 a wallet with some cash say 20-35 bucks
 a money clip with more cash say 80-120 bucks
 a hidden pocket with more cash say 300 to 400 bucks


 a wallet with some cash say 20-35 bucks  -> Phone with hot wallet
 a money clip with more cash say 80-120 bucks -> PC with some basic security
 a hidden pocket with more cash say 300 to 400 bucks  -> Hardware wallet
 Everything else you left in a secure location like a safe -> 2nd hardware wallet that only the people that need to know actually know about.

Side note, I know someone who created one of those fake scam wallets that are floating around, and it's on her PC that is the one she uses for day to day stuff. So if someone knows she has crypto, and gets to that PC to get the wallet.dat file they are actually getting a figment of her imagination.

-Dave
1186  Bitcoin / Mining / Re: Scrapped S19XP on: September 24, 2023, 12:05:39 PM
Did you buy it new from Bitmain or new from somebody else?

There are a lot of miners out there now that are 'new' from places that are doing really nice refurbs and unless you really look close or know what to look at it's tough to tell that they are not fresh out of the box

I just got an L7 from a person who refurbished it and it's sitting in a rack mining, but when I took it out of the box it looked like it just rolled out of the factory. No dust, no dirt, all fans perfect, all boards washed, and so on. Just some discoloration here and there and that fact that I knew it was a well done refurb were the only reasons I would not have said new from Bitmain.

-Dave
1187  Bitcoin / Bitcoin Discussion / Re: Single vs Shamir vs Multisig, which is easiest to hack statistically? on: September 24, 2023, 11:54:13 AM
Either one is more then secure as others have pointed out.
The question becomes what would work better for you and your situation.

It's like asking what car would be better for you. Once we know that all modern cars with airbags and ABS and so on are safe enough the question then becomes use. Are you hauling a family around and need something large? Do you just need it to do short trips around town? And so on.

If you are making multiple transactions a day then neither are great and a hardware wallet is better.
Do you want others to be able to make transactions without others being around then you would need multisig or SSS

And so on.

-Dave
1188  Other / Meta / Re: is Politics and Society board turning into a lowkey Off-topic board? on: September 23, 2023, 07:01:30 PM
is Politics and Society board turning into a lowkey Off-topic board?

That would be an improvement and a radical one!
P&S is a cesspool, actually no, it's what would come out of some mutated lifeform that would have been born out of a cesspool.

When you still have a topic like:
Elders of 13 inbred European Bloodlines house training their inbred children
on the first page among other such topics, it's a clear sign to just stay away from it if you don't have at least 4 years of 4chan training.
Nuking it would probably be 10000% better than getting rid of ponzi board, the spam press, and the useless bounty hunting boards.

Serious question, what kinky stuff were you planning that you felt the need to open visit that board?

I have said for a while having the P&S be a cesspool that it is along with the other crap boards and posts that are allowed here is hurting BTC / crypto and this board in general since there are a lot of people who don't want to be near anyplace that allow postings like that.

-Dave
1189  Bitcoin / Mining / Re: [11.2kW SOLAR/WIND/MAN] NastyMining Green Energy Project ☀️💨💪🔋 on: September 23, 2023, 06:06:01 PM
It’s been a couple years since I’ve updated information relating to this project. I should probably do that soon. It’s pretty amazing how much of an impact having alternative energy production at home for the last 6 years has had, not just on my bills but also the environment when I look at the statistics. Hopefully bitcointalk will get their image displaying issue resolved so the information here isn’t lost.

It is solved you just have to move your images here: https://talkimg.com/
Discussion here: https://bitcointalk.org/index.php?topic=5450546.0

There are also a few scripts that will move your images from imgur to talkimg.

As for the solar roof  / powerwall. We are looking at converting the condo building to use something like that but getting all 6 owners to agree is not a simple process. Not to mention spending $ on a roof that is still in perfect condition is a really hard sell.

-Dave
1190  Bitcoin / Development & Technical Discussion / Re: USB port blocker on: September 23, 2023, 01:53:36 PM
And this also brings home the point of why you should be using VeraCrypt or something similar https://www.veracrypt.fr/en/Home.html
Take my PC, remove the drive, you are still not getting anything out of it.

Use whatever metaphor you want be belt and suspenders, screw and glue, whatever. BIOS boot password, drive encryption password, OS encryption password.
But, once again only if its really worth it. Don't spend $200 of time to protect $50 of crypto.

-Dave
1191  Bitcoin / Wallet software / Re: Are blockchain explorer threat to the privacy ? on: September 23, 2023, 01:45:45 PM
The question is what privacy?

The privacy that someone who has crypto funds has access to a certain PC (or a PC on a certain network)?
Well, not really all they know is someone had access to that machine. Could be someone at that house for a party, could be a friend who was waiting for the other friend to finish something before they went to go grab a beer, etc.

Since that PC / or network already had someone on it who used crypto it's not like there were not signs for crypto use coming from there anyway.

I guess a better question would be why would you use a block explorer for addresses you own / control?
Every wallet will show you your balance and if not why would you really want to bother typing in an 25 character BTC address in someone else's PC?

And truth be told, it's your money its none of your relatives business how you check and deal with it.
Worrying about who knows what past a certain point is well pointless.

Also keep in mind a while ago your privacy it's like your virginity, once you loose it you are not getting it back.
If you (or anyone) has been doing things that made a lot of your information public it's not going to disappear because you change want your are doing and how you are doing it.

-Dave
1192  Economy / Exchanges / Re: Coinbase the most anti-Bitcoin organisation. Make #DeleteCoinbase great again on: September 22, 2023, 07:13:47 PM
Repeat it with me:

Not
Your
Keys
Not
Your
Coins.

Repeat it 1million times!




There is so much left to do out there as educators and orange pillers.
Those are not Coinbase's funds. Those are Coinbase customer's funds!

1) We really don't know how accurate that number is.
2) If it is, how many of those coins belong to 'people' and how many belong to 'institutions'
3) Yes, not your keys not your coins.
4) Still not your keys not your coins
5) Coinbase also partners with people doing the back end work. So how much of that number, once again if accurate, are from people or businesses that don't even know they are dealing with Coinbase.

-Dave
1193  Bitcoin / Development & Technical Discussion / Re: USB port blocker on: September 22, 2023, 03:30:50 PM
Waste of money.

1) For a desktop PC all you have to do is pop the top and add in a USB card.
2) They are still plastic, with time and effort you can pull one out.
3) For the determined person it's get laptop, take off cover, un-solder the port (only 4 wires on USB 2) and solder in a new one. But at that point you might as well just pull the drive out

Most if not all PCs can disable the USB ports in BIOS and you can also set a BIOS password so that cannot be changed without the password.

-Dave

Correct me if I'm wrong, but isn't the easiest way to reset a BIOS password still to just remove the mainboard battery? Or was that only possible 20 years ago and things have changed? not up to date, but most likely BIOS pws are still quite easy to circumvent I would guess.

Depends on the machine. Older ones yes, newer ones no.

With the next being said, if you are doing that then you have to power down and reboot the machine. At which point when it reboots.
If you had your drive encrypted then they can't get to it now anyway.
And, if you didn't have it encrypted. Then they powered down your machine and got the battery....they can just take your drive.


Any half decent BIOS password can't be reset (anymore) by removing the battery.

Keep in mind most of these are going to be on older machines so we are not taking 2023, but 2016....

-Dave
1194  Economy / Collectibles / Re: WTS 2018 Bitcoin Penny™ PLATINUM Graded PR68 Reverse Auction on: September 22, 2023, 01:13:04 PM
Bump and price drop to BTC0.045
Fall is here and the car shows where I was spending time to move that stuff is coming to an end, so time to move more crypto items.

Will keep moving things out bit more, depending on my free time.

-Dave
1195  Bitcoin / Wallet software / Re: A Non-Custodial wallet, Atomic Wallet, being compromised on: September 22, 2023, 10:42:12 AM
They made an update to June 3rd Event Statement the other say.
Still says  'not our fault, looking in to it'
https://atomicwallet.io/blog/articles/june-3rd-event-statement

I'm guessing that they hope it just quietly fades away and drops from peoples memories.

-Dave
1196  Bitcoin / Bitcoin Technical Support / Re: Blocktrail (btc.com) wallet recovery P2PKH/P2SH issue on: September 21, 2023, 03:42:11 PM
(As example, here is a public version on google https://www.scribd.com/document/433450775/bitcoin-recovery-key)
Can you share what it looks like elsewhere? This website wants me to create an account, and after that wants me Paypal details before I can view a file.

when i import the XPUB by itself, i can see the funds.
Once i import the same XPUB as 2-of-3, there is no balance showing up.
That means the funded address is not multisig, and you only need the seed that created the xpub.


Which should be the seed that is given at least in the example. That is ALL that should be needed if it's legit.
Import the 24 words and that should be that. You may have to adjust the derivation path, but that is it.

-Dave
1197  Economy / Exchanges / Re: Poloniex Fair Fund notice on: September 21, 2023, 02:58:41 PM
I'm from Romania.

That's the final notice ( deadline Oct 1st ). KCC is legit from what I see. I'm expecting some notice from Kraken and also from Bittrex  ( only for Bittrex US users).
I wouldn't be surprised at all to get something from Binance also..( but there are two separate entities, US and Global).



Salutare!

What do you mean deadline 1 Oct?

Different countries have different dates. The www.poloniexfairfund.com site is for US people. Users in other parts of the world that are still entitled to getting something got different notices from KCC.
If you did not get a notice from them or someone else you were not entitled to get something in the settlement. It's a large convoluted legal mess.

I know someone in the EU who in theory *was not* entitled to anything, but since when he setup his Polinex account he was living here he did get a notice.

-Dave
1198  Bitcoin / Development & Technical Discussion / Re: USB port blocker on: September 21, 2023, 01:17:50 PM
Waste of money.

1) For a desktop PC all you have to do is pop the top and add in a USB card.
2) They are still plastic, with time and effort you can pull one out.
3) For the determined person it's get laptop, take off cover, un-solder the port (only 4 wires on USB 2) and solder in a new one. But at that point you might as well just pull the drive out

Most if not all PCs can disable the USB ports in BIOS and you can also set a BIOS password so that cannot be changed without the password.

-Dave
1199  Bitcoin / Development & Technical Discussion / Re: [INFO - DISCUSSION] Wormhole attack in Lightning Network on: September 21, 2023, 11:42:13 AM
But, you have to always be in the position to rob the person in the middle. You need a lot of well connected nodes to do this and they have to be the cheapest way of routing. So you are charging low fees and locking up a lot of BTC in the hopes that people route enough money though you for this to work, and the fact that you don't get caught and booted off the network.

-Dave

How would you go about booting a LN router from the whole network? AFAIK, there isn't a banlist like Bitcoin Core has, or even if there is, it is non-trivial to detect that this kind of activity is happening.

For now there is not, but if this does become an issue I'm sure it will be added. Lets face it, many things were added to the BTC protocol over the years because something happened. Or something happening became a larger possibility. But for the moment, if it does happen to someone you can bet after a lot of head scratching and posts on the discussion boards the next time that node did something like that or another node did the same thing a ban list is going to get to the top of the to do list.


Exactly and this is why it will never be a real threat because instead of the third guy whom you want to cheat, you can BE! that guy and take all the fees perfectly normal yourself! Trying to make the route longer but at the same time cheaper will act like the barrier, it's a no go!
I'm curious if such an attack which results in collecting a few milisatoshi now and then will ever make up for all the funding you have to set up in order to deploy your malicious network!

Considering that you'd have to repeat this attack millions of times before you can ever recoup the cost of hosting the servers monthly, I'm inclined to think its not practical.

For any of us here it's not viable, for a government or any organization with a bunch of hardware and a few programmers on staff it's not that difficult to do.
BUT, it's still not going to generate a profit, just destabilize the LN.

-Dave






1200  Bitcoin / Bitcoin Discussion / Re: Repayment Deadline Increased for the MT Gox Exchange’s Creditors on: September 21, 2023, 11:33:04 AM
Also from that article linked:

Quote
Additionally, Kobayashi explained that, for rehabilitation creditors who have provided the necessary information, repayments will be made in sequence as early as the end of this year.

From what I see the 2024 date is the END of the repayments, not the start. I can see them wanting to do it slowly and in batches to make sure it goes well as opposed to shoving it all out the door as fast as possible and dealing with all the issues at once. There are merits to doing it both ways.

-Dave
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