Advisory: Litecoin and Bitcoin addresses can look the same under Segwit

in #blocktrades7 years ago (edited)

By default, BTC and LTC segwit addresses both begin with 3

Before segwit, LTC addresses always began with an L and BTC addresses began with a 1, which prevented users from accidentally mixing up bitcoin and litecoin addresses. With segwit, they both use a common prefix of 3 by default, and the addresses are "compatible" in the sense that you can accidentally send bitcoin to a litecoin segwit address and vice-versa.

Several users sent Litecoin to a Bitcoin deposit address at BlockTrades

We've had a couple users make this mistake: they got a bitcoin deposit address from https://blocktrades.us, then they sent litecoin to that address from their litecoin wallet or exchange. Unfortunately, the wallets and exchanges can't tell that the litecoin is being sent to our bitcoin wallet that won't see the litecoin transaction. This means we get no notifications that anything has gone wrong until the user contacts us and asks us about his litecoin transaction.

We've been manually handling such mistakes, but it's very time-consuming for everyone concerned because it requires keys to be moved between wallets, so please if you're sending bitcoin or litecoin, double check that you have the correct address type.

Potential issue when specifying your receive address too

When you input a receive address into BlockTrades, it's important to make sure it is of the correct type also. So if you want to receive Litecoin be sure you get a litecoin deposit address from your exchange or wallet, and make sure the Send type is Litecoin on our site. All obvious instructions I'm sure, but doesn't hurt to double check before you transact.

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Hi @blocktrades I've just sent Litecoin from coinbase to a Litecoin wallet for the first time on BlockTrades. The transaction is still pending hours later & the option to send Litecoin was still available. When I refreshed the page, a message appeared saying: "Steem delegation purchases disabled until current pre-orders are filled". Does this mean my order is a pre-order that is waiting to be filled or is my money lost forever?

Great question!!

There's no option to trade SBD/Steem on blocktrades.. this is weird.. hey @blocktrades what's your statement on this?

this post reminds me of a bad experience that has beenfall me since joining this platform. I have sent a steem by using 317 steem with sbd memo. and this has been a nightmare for me in bittrex. I can not say much. I just keep trying and praying. but I just joined a few days ago on this platform. and I have shared bad news that hit me through my introductory postings. hopefully this will be solved. thanks so much sir.

hi @blocktrades
I totally agree with your speech
the user's error habits at the time of delivery, in a hurry, so they forget to control the entire delivery process, including forgetting to enter the memo.
as it is often a user error, when making a submission.
thank you for remembering

Yes true @abudar..hana si lgee nyan abu maen koh can

COIN MAN says... FLY ME TO THE MOON...

COIN MAN by @pocketechange

@blocktrades thanks for updating on this issue that happened recently between bitcoin and litecoin addresses, hopefully the message gets to this people and the future ones to avoid the same thing happen.

I just sent you a message via the Wallet, because I made a big comment on the previous post you made 5 days ago (https://steemit.com/blocktrades/@blocktrades/blocktrades-re-enables-steem-power-delegations-limited-availability).

I wanted to let you know, Today, I posted Chapter 4 of 11: Understanding How to Keep our Steemit and Steem Cryptocurrency Account Safe - How to Use the 5 Different Passwords - This is part 4 of the 11 Chapters (Full Guide) to help new people make their way on the platform.

I mentioned you in this Chapter in part #2 and how @blocktrades can help keep our funds safer by using less passwords!

Here is the link to this new Chapter/post:
https://steemit.com/steem/@gold84/chapter-4-of-11-understanding-how-to-keep-our-steemit-and-steem-cryptocurrency-account-safe-how-to-use-the-5-different-passwords

Huge thanks to you for inspiring me to continue doing this chapters, and for all your support!

Looking forward to hear from you with your additions, knowledge and experience in any of the Chapters!

Regards, @gold84

Can you please give me my 10 Steem back that I sent you?

Transfer 10.000 STEEM to blocktrades

d08e5492-e2eb-4395-bad1-de469da8620e

I contacted Bittrex and they said they didn't receive. I logged in to BlockTrades.us and it is not in the completed or pending transaction.

This is real issue, thanks @blocktrades for this timely alert....

I almost made the same mistake when I was funding my account. Please everybody be cautious then working with wallets of any kind!

My LTC segwit addresses start with M

yes, this is an option that can be set in litecoin wallet, but unfortunately 3's also work.

Nice post beautiful presented and explained. detail oriented with nice pics. thank you for sharing this with us, Upvoted

If you mind checking out my blog @kingjan for latest posts and updats, Thank you

I didnt know about that, thanks for the advise!