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Topic: Mnemonic is no longer safe? - page 4. (Read 585 times)

hero member
Activity: 1344
Merit: 538
October 20, 2022, 04:17:39 AM
#10
For me it's safe, the thing is that how to back it up?

And maybe that's how hackers were able to get everything from your friend, did he write down his mnemonic phrase?

So it's really up to the individual safe practice, just don't safe it in the same machine, write it down just like old fashion, never put it online like in a cloud or something.
legendary
Activity: 2072
Merit: 1023
★Bitvest.io★ Play Plinko or Invest!
October 20, 2022, 04:01:35 AM
#9
As far as I use Non-Custodial Wallet, I think Mnemonic Phrase is very safe, I've never experienced any hacking either. BTW I use Trust Wallet. Coin98 has high credibility, they are on par with other Non-Custodial Wallets such as Trust Wallet, imToken and others. So I don't think the problem is coming from there.

I don't know for sure why your friend's wallet got hacked, but I think it has something to do with interacting with a fraudulent smart contract. Your friend may admit that she's never done that, but who knows?

For this problem I only have a suggestion not to use the wallet anymore, or to make sure that your friend's wallet is not connected to a project, you can check it at https://revoke.cash/, hope it helps.
I have heard about this Revoke.Cash but I don't know how safe the website is, have you used this yourself? Is it safe for any wallet users to connect to? Seed phrases are safer offline, maybe his friend copied the Seed phrase online, in mail or in PDF, I've seen people keeping their seed phrases in the most stupid places.

It's safe, I haven't used through this site but I'm still using a similar one. https://app.unrekt.net/
It helps us to completely disconnect as well as cancel any fiduciary rights to the websites we have ever connected to the wallet. I think this is also the cause that his friend had, leading to the above hack.

I am also using C98 wallet and I have never had any problem from it, C98 is a wallet as well as a non-custodial wallet developed by coin98 team from Vietnam. OP you can contact the c98 team directly to clarify the problem they are very enthusiastic about customer support, maybe you will find the reason you are looking for.
sr. member
Activity: 1722
Merit: 269
October 20, 2022, 03:58:09 AM
#8
Just want to share, I can't prove that mnemonic safe or not.  I'm not an expert for things like that.
My friend just got hacked, lost about 300-400 USD.
He wonder how it happened, make some probably the device was infiltrated by malware, if yes. All his key is gone(all), so there's no only 1.
He was generated Mnemonic by coin98. Never connected to MetaMask or some things like login to connected, never.

Usually i think that Mnemoic phrases are very safe. I don't really know the numbers but as far as i know it is almost impossible to brute force the because there are millions of possible solutions obviously. So i would guess the reason why your friend was hacked was not the mnemonic phrase but the way he created it or how he saved or stored it. Usually you are connected to the internet when you are creating your mnemonic phrase no matter if you are creating it for metamask or for a desktop wallet. So if your PC is already infected with a malware or something when you are doing that they can already get the phrase there.
legendary
Activity: 2156
Merit: 1622
October 20, 2022, 03:18:10 AM
#7
Its not that Mnemonic is no longer safe. Everything is as safe as the weakest link. If his device was compromised or someone had access to it without his knowledge than even 100% buletproof solution will not work. My guess is that mnemonic did not fail. your friend failed to protect it.
sr. member
Activity: 882
Merit: 274
October 20, 2022, 03:04:09 AM
#6
As far as I use Non-Custodial Wallet, I think Mnemonic Phrase is very safe, I've never experienced any hacking either. BTW I use Trust Wallet. Coin98 has high credibility, they are on par with other Non-Custodial Wallets such as Trust Wallet, imToken and others. So I don't think the problem is coming from there.

I don't know for sure why your friend's wallet got hacked, but I think it has something to do with interacting with a fraudulent smart contract. Your friend may admit that she's never done that, but who knows?

For this problem I only have a suggestion not to use the wallet anymore, or to make sure that your friend's wallet is not connected to a project, you can check it at https://revoke.cash/, hope it helps.
I have heard about this Revoke.Cash but I don't know how safe the website is, have you used this yourself? Is it safe for any wallet users to connect to? Seed phrases are safer offline, maybe his friend copied the Seed phrase online, in mail or in PDF, I've seen people keeping their seed phrases in the most stupid places.
jr. member
Activity: 350
Merit: 1
October 20, 2022, 01:26:13 AM
#5
The seed phrase is still pretty much safe AFAIK.
Maybe your friend made and error unknowingly to him or maybe his device was infected by malware.
And again your should have chosen a popular and more safe wallet rather than going for an unknown wallet IMO.
legendary
Activity: 1932
Merit: 1273
October 20, 2022, 12:20:04 AM
#4
I never heard of Coin98 Wallet, and upon checking it out, it seems there is no source code available. Its availability is also only on Chrome.

Mnemonic code generation by a popular and trusted wallet is fine. The seed generation process is secure as it widely can be viewed by those who understand. Until this time, A popular wallet user is safe from any mnemonic code vulnerability that I'm aware of.

The possibility of your friend getting hacked due to personal security issues is more likely than a standard process of mnemonic code generation and potential collision. So without knowing your friend's digital hygiene, it is hard to seek the actual reason for it getting hacked.
sr. member
Activity: 770
Merit: 284
October 20, 2022, 12:18:48 AM
#3
-  In my current experience, I don't see any problem with this. Why did @OP have such a bad experience with this? Because for me it's safe as

long as you keep your mnemonic in the right and safe place. Just make sure that when you use it, don't ever forget to log out of the platform

wallet you'll be using so that hackers can't access you.
hero member
Activity: 1484
Merit: 706
October 19, 2022, 11:29:57 PM
#2
As far as I use Non-Custodial Wallet, I think Mnemonic Phrase is very safe, I've never experienced any hacking either. BTW I use Trust Wallet. Coin98 has high credibility, they are on par with other Non-Custodial Wallets such as Trust Wallet, imToken and others. So I don't think the problem is coming from there.

I don't know for sure why your friend's wallet got hacked, but I think it has something to do with interacting with a fraudulent smart contract. Your friend may admit that she's never done that, but who knows?

For this problem I only have a suggestion not to use the wallet anymore, or to make sure that your friend's wallet is not connected to a project, you can check it at https://revoke.cash/, hope it helps.
newbie
Activity: 7
Merit: 0
October 19, 2022, 11:03:33 PM
#1
Just want to share, I can't prove that mnemonic safe or not.  I'm not an expert for things like that.

My friend just got hacked, lost about 300-400 USD.

He wonder how it happened, make some probably the device was infiltrated by malware, if yes. All his key is gone(all), so there's no only 1.

He was generated Mnemonic by coin98. Never connected to MetaMask or some things like login to connected, never.

Address land to "0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82"

0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 has lot network. There's 5 I found. https://blockscan.com/address/0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82

ETH  https://etherscan.io/address/0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82
BSC  https://bscscan.com/address/0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82
Poly https://polygonscan.com/address/0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82
OP https://optimistic.etherscan.io/address/0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82
ARBI https://arbiscan.io/address/0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82

Take a sample :
Code:
	Txn Hash	Age	From		To	Value	Token
0x3cf166bd6c86b610162daa81f1cbc3dba78383fdd6399eac3091f1e1266158e6 1 hr 21 mins ago 0x46db46fca91287acada4669788ea0e0e6fccc4d6 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 1,000 DEXTools (DEXT)
0x12449d639d36ff5360bf2ef507175ac0d2d7ee4b28397f0841d7b7760fe9cd00 1 hr 21 mins ago 0x46db46fca91287acada4669788ea0e0e6fccc4d6 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 0.124008 Wrapped Ethe... (WETH)
0xe11c041c8a3a34cb4c3127ef16c9ac42c144d76a825c962998187634d13cbae3 1 hr 33 mins ago ENS Name sircryptoofblock.eth IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 0.02358337 Governance O... (gOHM)
0x1f56d27daaf2eb9ea62a34488a52ba1290f67c5c69bff3e1470a20466861a031 1 hr 34 mins ago ENS Name sircryptoofblock.eth IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 16.55468149 Ethereum Nam... (ENS)
0xec5390bed60aec9deeea96e9518b20b21959a1e5a03eaf983008616656357ce1 1 hr 34 mins ago ENS Name sircryptoofblock.eth IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 0.5 Wrapped Ethe... (WETH)
0x4486b49d823e35d72194cfb1103dff731d917ecc302e0c39f1feced1d0cad3df 1 hr 35 mins ago ENS Name sircryptoofblock.eth IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 166.78365256 StargateToke... (STG)
0xd80d62c04f17f25d7481acfc2b10e7358337751580991b26031083386ee2ee37 1 hr 54 mins ago 0xea1256ad1cc8144c09aebe19217daedc2fb6c655 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 1.09542125 Wrapped Ethe... (WETH)
0xf3bb3f7954b5b85bb4d9dd3d691d72fd1eb8cc18be23c55440bbb52a31fa87bb 1 hr 59 mins ago 0xea1256ad1cc8144c09aebe19217daedc2fb6c655 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 3,325,000 ERC-20: Met.....yAi
0xd9c4a28c70c551b251876cfa94d0d66181a925f1fd5e75b550ea547ecfd412a1 2 hrs 1 min ago 0x3e99ef9745c7174ef20639b1035b79ed1b8a085e IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 250 Polkastarter... (POLS)
0x19a9516e5dfc3695edfdba696ae2b6527f9384e7e286acd48569a9cd6242eae3 2 hrs 5 mins ago ENS Name dmuz.eth IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 0.507535 Wrapped Ethe... (WETH)
0xda35ffcb30ebe56c4e3e5303170dfc12ab313bdf653c8b4c4752aecd37d3019d 2 hrs 10 mins ago ENS Name dmuz.eth IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 1.54064217 Wrapped Ethe... (WETH)
0x94d3ad9ea80dc5df577fa37f25383e049aa98f76715f8df922ad8b51b4bd7663 2 hrs 17 mins ago ENS Name dmuz.eth IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 1.8296811 Wrapped Ethe... (WETH)
0xef4e4413bb3535c78bce921f9d05814961c3a9b14aa3ace872ac51de20e80644 2 hrs 37 mins ago 0x154eff17af3ae2fe2064fe70fb997d807cf1c011 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 41.99255724 Olympus (OHM)
0xf0b29887ad526399f291462a4b3eef4283001037a3547f5c030b59ccb52fd00a 2 hrs 38 mins ago 0x154eff17af3ae2fe2064fe70fb997d807cf1c011 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 92,976,341,396.66919415 The People’s... (PEEPS)
0xa752e2a30cfdc25107013f9ea2338f2b0eb55ac423762c8a614a08fe6c9d8188 2 hrs 44 mins ago 0x154eff17af3ae2fe2064fe70fb997d807cf1c011 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 3,810,550,290,956.5476974 Bezoge Earth (BEZOGE)
0x7039964c4e99532c75aada210d1d81d7231bc49d7fe268fff4a69d3711e1fdb2 2 hrs 44 mins ago 0x154eff17af3ae2fe2064fe70fb997d807cf1c011 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 41,267.59937671 MintySwap (MINTYS)
0x08aed967fba449b94e5ff4536fba07d25f8ae1a67ff956781dd1e1aedea81bdc 2 hrs 45 mins ago 0x154eff17af3ae2fe2064fe70fb997d807cf1c011 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 49,999.99999716 Falcon 9 (F9)
0xa2223addbef9999d87140a013e751b443bbdde4d459ed6b345b6d925e92aa81e 2 hrs 45 mins ago 0x154eff17af3ae2fe2064fe70fb997d807cf1c011 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 80,462.26 ACCEL (ACCEL)
0xd012dc1d82c7f8cb602a0e1b9d4b0295691431b4aac90c6e5ef0e497e2432769 2 hrs 57 mins ago 0x8090b15679d7b67625f5655883a7e42fad1adffa IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 0.22792 Wrapped Ethe... (WETH)
0xd33bb3f40d8ad5158c5798ea0cf5ea680779a18ee3bf7b7e4f11018ffdb948a0 3 hrs 2 mins ago 0xe9c14ea0d6e9aaa7c58774b05cc6f455cc506bda IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 246.6231 Ultra Token (UOS)
0x56909ca1b3b820959a45daa3792c7002d7786be28821b0f3c32e006761ce4de4 3 hrs 5 mins ago 0x92a3d57a912488665946646c123b0c5d3722ea8c IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 501.793375 Litentry (LIT)
0xfbd778310d2b08c183a564de912355cf6c923b27e2fa4bd5cbc17be0ae101fc7 3 hrs 6 mins ago 0x92a3d57a912488665946646c123b0c5d3722ea8c IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 413.79544305 StaFi (FIS)
0x75f905d63f8725364e6feb94d2502e0f98b0890e4fa816a8db3dc838d7d92f08 3 hrs 9 mins ago 0x33a54fd3dbe912d7725962d216970ec1189321c0 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 15,136.99488655 LooksRare To... (LOOKS)
0x5f4ec7cd2719489b1153f84c72ffca0d4e152945d4848c8f0a2eabc61f8c257b 3 hrs 10 mins ago 0x33a54fd3dbe912d7725962d216970ec1189321c0 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 7.92 Staked Aave (stkAAV...)
0x1b76784ae516a45d3cd0d73b81e5235b9c32aedc7f84f8290700887050e8810a 3 hrs 12 mins ago 0x33a54fd3dbe912d7725962d216970ec1189321c0 IN 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82 0.22316481 Wrapped Ethe... (WETH)
All those sender is sending all assets to 0x89e7d7b622fe0dcc53c42cee12a9ebdc9fa29c82

I been research possibility:
I mean theres tons of addresses out there so its like how could you not hit one
Because there are this many possible valid 12 word seeds:
340,282,366,920,938,463,463,374,607,431,768,211,456

Like I said I'm not an expert, just want to share. make this thread as archive in case there solved or new case found.
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