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Author Topic: Is Electrum affected by this Ledger exploit going on?  (Read 152 times)
adaseb (OP)
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December 14, 2023, 03:03:30 PM
 #1

Just wondering if its safe to use Electrum and sign transactions. There is news everywhere that Ledger is compromised and some dApps and not to sign ANY tranasctions until further notice.

I know that Electrum is mostly BTC based but want to make sure I won't be affected. I read the reports on Twitter but Im not a dev and can't understand exactly what is going on.

Is Metamask also unsafe?

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December 14, 2023, 03:13:08 PM
Merited by pooya87 (2)
 #2

Using Electrum with Ledger is safe.

If truly that Ledger Live is not compromised, it is safe to use it with metamask. But do not use the wallet to interact with dApps.

It is worth knowing that Ledger wallet is not recommended. Keep your bitcoin safe and separate from those altcoins. You can get Passport hardware wallet.

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December 14, 2023, 03:59:36 PM
 #3

Electrum shouldn't be affected according to the tweet only users who interact with dapps are affected so you should be able to use Electrum to sign a transaction.

If you have tokens and coins on ledger live it should be safe as long you don't use any dapps.

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December 14, 2023, 07:08:31 PM
 #4

According to reports, only a malicious version of Ledger Connect Kit was identified. So it is probably smart to avoid those DApps if you are rolling with a Ledger.  Electrum doesnt do DApps anyway, so no worries there.   

Ledger just isnt what it used to be. Company just keeps screwing up.

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December 14, 2023, 07:27:19 PM
 #5

According to reports, only a malicious version of Ledger Connect Kit was identified. So it is probably smart to avoid those DApps if you are rolling with a Ledger.  Electrum doesnt do DApps anyway, so no worries there.   

Yeah electrum is actually a bitcoin only wallet and I think I have not seen a bitcoin only wallet that actually supports DApps, it is definitely safe. Even the ledger that was compromised I don’t think it affected the device directly but DApps connected to it, if one opens the DApps an unauthorized transaction which needed to be signed will be there, you only get compromised if you actually signed that transaction. This kind of things is one of the reason why the best wallets to store bitcoin are bitcoin only wallets

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December 14, 2023, 10:58:56 PM
 #6

I don't have much knowledge about this attack and how it works. However, it seems it's related to Ledger and some dapps.
By using electrum, you should be fine. By connecting your ledger to electrum and verifying each transaction before broadcasting it, you should be fine too.
Don't know about the other dApps, to be honest.

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December 15, 2023, 01:00:28 PM
 #7

Just wondering if its safe to use Electrum and sign transactions. There is news everywhere that Ledger is compromised and some dApps and not to sign ANY tranasctions until further notice.
The incident wasn't about the Ledger hardware wallet itself but the Ledger Connect Kit (a Javascript library) which is used by many DApps.
And since you really can't connect Electrum to those DApps while your Ledger hardware wallet is plugged in, you're safe using it. There's no problem in using it right now to make BTC transactions.

Also as I've stated in other thread related to this issue, Ledger already fixed this issue.
Ledger already made an update about this.
Quote
Update:

The malicious version of the file was replaced with the genuine version at around 2:35pm CET.

The new genuine version should be propagated soon.

We will provide a comprehensive report as soon as it’s ready.

In the meantime, we’d like to remind the community to always Clear Sign your transactions - remember that the addresses and the information presented on your Ledger screen is the only genuine information.

If there’s a difference between the screen shown on your Ledger device and your computer/phone screen, stop that transaction immediately.
Source: https://twitter.com/Ledger/status/1735298142118072512

Is Metamask also unsafe?
Metamask stated that their users were not affected.
Quote
After investigation, we determined that MetaMask Portfolio and SDK users were never at risk.

As a precaution, we temporarily turned off transactions on Portfolio to update our dependencies.
Source: https://twitter.com/MetaMask/status/1735378711619207569

You can also learn more about this incident in the latest blog post by Ledger's CEO:
https://www.ledger.com/blog/a-letter-from-ledger-chairman-ceo-pascal-gauthier-regarding-ledger-connect-kit-exploit

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December 16, 2023, 07:11:37 AM
 #8

Just wondering if its safe to use Electrum and sign transactions. There is news everywhere that Ledger is compromised and some dApps and not to sign ANY tranasctions until further notice.

I know that Electrum is mostly BTC based but want to make sure I won't be affected. I read the reports on Twitter but Im not a dev and can't understand exactly what is going on.

Yes, using Electrum with Ledger is still safe,
However, always be careful and double-check the compatibility between the address on the Ledger hardware wallet and Electrum or other wallets during transactions because vulnerabilities could arise from weak OS security systems, such as clipboard malware or other viruses.

Don't let it happen like this: I've been hacked (Electrum 4.3.2)


If truly that Ledger Live is not compromised, it is safe to use it with metamask. But do not use the wallet to interact with dApps.

I see that the Ledger has updated information regarding this:

UPDATE: The genuine Ledger Connect Kit 1.1.8 is now fully propagated. Ledger and WalletConnect can confirm that the malicious code was deactivated. You are now safe to use your Ledger Connect Kit. Reminder that that we always encourage clear signing.


It is worth knowing that Ledger wallet is not recommended. Keep your bitcoin safe and separate from those altcoins. You can get Passport hardware wallet.

It depends on how you use it.
For those who already have it, that doesn't mean you should just throw it away. However, for those who don't have one, you may still be free to consider any hardware wallet that fits the user's criteria.

As long as I use Ledger with Electrum (for Bitcoin transactions), I have not encountered any problems regarding Software (Electrum) or HW vulnerabilities, even though I inevitably have to use Ledger Live for several Firmware updates.


And if you want to be even more secure, you can use a multi-signature wallet between Electrum and Ledger Hardware wallet.

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December 18, 2023, 04:51:11 PM
 #9

~snip~
It is worth knowing that Ledger wallet is not recommended. Keep your bitcoin safe and separate from those altcoins. You can get Passport hardware wallet.


You repeat the same thing in countless posts as if older members are not already aware of the risks that come with using Ledger - and you also advise buying HW that you most likely don't even own and that costs around $300 outside the US. Keeping Bitcoin "safe" is much more than owning any HW, although some people realize this too late.

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December 18, 2023, 05:36:30 PM
 #10

You repeat the same thing in countless posts as if older members are not already aware of the risks that come with using Ledger - and you also advise buying HW that you most likely don't even own and that costs around $300 outside the US. Keeping Bitcoin "safe" is much more than owning any HW, although some people realize this too late.

Are you feeling not comfortable that I am repeating it? Which means you do not have to read my post because I will continue to repeat it anytime we are discussing about hardware wallet.

Yes, I do not have Passport hardware wallet, but you can give any flaws the hardware wallet has to correct me instead of your pointing towards something not useful.

I use 2-of-3 multisig which I have also posted about few times on this forum. But using hardware wallet like Passport is still a good idea, even though I will still prefer to use hardware wallet multisig setup with online wallets.

I have also repeated several times about using wallet like Electrum on airgapped devices, which I will like with passphrase backups in different locations from its seed phrase.

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December 19, 2023, 04:00:29 AM
 #11

You repeat the same thing in countless posts as if older members are not already aware of the risks that come with using Ledger - and you also advise buying HW that you most likely don't even own and that costs around $300 outside the US. Keeping Bitcoin "safe" is much more than owning any HW, although some people realize this too late.

Are you feeling not comfortable that I am repeating it? Which means you do not have to read my post because I will continue to repeat it anytime we are discussing about hardware wallet.

Yes, I do not have Passport hardware wallet, but you can give any flaws the hardware wallet has to correct me instead of your pointing towards something not useful.
-snip-

The point I took from what Lucius said was how to keep Bitcoin safely stored through any means and not limited to HW or even specific brands.

For example, even when you use a Passport hardware wallet, if you are not careful in storing the seeds, whether you forget where to keep them or, furthermore, someone steals them, then the function of the hardware wallet itself is no longer safe.

I suggest that the use of hardware wallets is not limited to specific brands, but instead, security functions, of course, are adjusted to the user's budget to choose based on their search results.
Each hardware wallet certainly has its advantages and disadvantages. I even have the Nano X and Trezor T to learn more firsthand about both.


Some explanations from Ledger related to the Ledger Connect Kit that was exploited some time ago.

– December 14th, 2023, Ledger experienced an exploit on Ledger Connect Kit, a Javascript library to connect Web sites to wallets.
– The industry collaborated with Ledger to neutralize the exploit and try to freeze stolen funds very quickly – the exploit was effectively running for less than two hours.
– This exploit is currently being investigated, Ledger has filed complaints and will help affected individuals try to recover funds.
– This exploit did not and does not affect the integrity of Ledger hardware or Ledger Live.
– The exploit was limited to third party DApps which use the Ledger Connect Kit.

-snip-

This was an unfortunate isolated incident. It is a reminder that security is not static, and Ledger must continuously improve our security systems and processes. In this area, Ledger will implement stronger security controls, connecting our build pipeline that implements strict software supply chain security to the NPM distribution channel.

It is also a reminder that collectively we need to continue to raise the bar for security around DApps where users will engage in browser-based signing. It was Ledger’s service that was exploited this time, but in the future this could happen to another service or library.

At Ledger, we believe clear signing, as opposed to blind signing, will help mitigate these issues. If the user can see what they sign on a trusted display, unintentionally signing rogue transactions can be avoided.

Ledger devices are open platforms. Ethereum has a plugin system that allows DApps to implement clear signing, and DApps who would like to implement this protection for their users can learn how on developer.ledger.com. In the same way we saw the community come together today, we look forward to your help bringing clear signing to all DApps.

So, using Electrum with Ledger is safe and not affected by the Ledger Connect Kit exploit case.

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December 19, 2023, 06:35:32 AM
 #12

The point I took from what Lucius said was how to keep Bitcoin safely stored through any means and not limited to HW or even specific brands.
I will still be one of the users that mostly mention paper wallet and wallet on airgapped device on this forum. What he is proving is that adaseb is not a newbie and likely not comfortable with me not recommending Ledger. But anyone that post about Ledger, I will still let the person know how Ledger is not a recommendable wallet. Although, it is just a forum with free speech, you can also post yours.

https://bitcointalk.org/index.php?action=search2

I suggest that the use of hardware wallets is not limited to specific brands, but instead, security functions, of course, are adjusted to the user's budget to choose based on their search results
Then you can post about the hardware wallets that you will recommend. I have gone through the features those hardware wallets have and I prefer Passport among them all. I also prefer Trezor before until they brought close source secure element with the Trezor Safe 3. For altcoins hardware wallet I still recommend Trezor Model T. If it is Ledger, I can never recommend such wallet. Ledger Nano is a wallet that do not care about their customers privacy and full control and yet becoming to be more of a wallet that can not be recommended.

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December 20, 2023, 02:26:53 AM
 #13

It is worth knowing that Ledger wallet is not recommended.
Ledger wallet is not recommended because it is close source, not open source. There are open source hardware wallets to use so it's not recommended to use Ledger.

[LIST] Open Source Hardware Wallets.

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