Questions tagged [security]
Security issues with the design or implementation of Bitcoin.
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is webtrader.xtprofit.net Legit [duplicate]
I had opened an account a few week ago with Xtprofit platform. I test some transactions with a litte amount, and it works.
But there are some security issues:
1- I can't activate two factor ...
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Do nodes periodically check block hashes?
I am aware that, in Bitcoin, blocks are immutable because of the Merkle tree structure, which ensures that every block contains the (Merkle root) hash of the previous block.
Thanks to the properties ...
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Hardware wallet security
With a hardware wallet, when you enter your pin and seed onto the hardware wallet software, is that data stored on their servers, and potentially accessible to hackers?
I know that the private key is ...
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Is there a way to block 100s of emails monthly asking $67-120. "Transfer" fee; & is it poss.. 2collect mining frm all apps/sites prior usd w/ my email [duplicate]
Question one; I get literally hundreds of emails about I need to pull my crypto in 24 hours then they take u to the same green dominated site with kaylee in comments stating new then add up a bunch ...
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Is it safe to share half of the private key in WIF format?
Assuming I would generate my keys on https://www.bitaddress.org.
Is it safe to share the following four pieces of data?
One half of the private key.
The public key.
An SHA512 hash of the private key.
...
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Is it recommended not to take hardware wallets through international airport security scanners?
I suspect this won't get an answer as it is highly speculative (on the scanning technology in airports) but does anyone have any information or informed views on whether you can take hardware wallets/...
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Headers-first sync and malicious peers [duplicate]
Since headers-first syncing specifies that the entire header chain is downloaded from a single peer, how does the downloading node know that it is not being served a manufactured out-of-consensus ...
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Security Of Public Bitcoin Nodes / Servers
I have been wondering about the security of using public bitcoin nodes with your wallet. E.g. sparrow wallet offers three connection options (public nodes, your own bitcoin core node or a private ...
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Are SPV and fraud proofs a viable option for scaling Bitcoin?
I'm aware that this might be borderline taboo to discuss because of its potential implications (uncapped block size) but, in an attempt to put aside the ego stuff from the block size wars, I'd like to ...
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Can Pending HTLC's drop my balance?
I just noticed that 2 million sat's disappeared from my balance in thunderhub. No payments or transactions have been made. Can pending HTLC's effect my balance? If Not what else could drop my balance ...
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Can punched-in seed phrase on steel plate be read by airport security x-ray?
If I put a steel plate with seed phrase in bag and it goes through TSA's x-ray machines at the airport, am I at risk of them being able to read the words?
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What's the point of Multi Signature Addresses?
When an attacker has access to the private key of the wallet, he can dump the private keys of every address used for the multisign address(es).
So, what's the point of multi sign addresses when there'...
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Why does Miniscript add an extra size check for hash preimage comparisons?
When I input the following miniscript into https://bitcoin.sipa.be/miniscript/:
and(pk(claimant_pk),sha256(H))
I get the following Script:
<claimant_pk> OP_CHECKSIGVERIFY OP_SIZE <20> ...
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Is it safe to install Bitcoin Core using a package manager?
For example, on macOS:
brew install --cask bitcoin-core
Or on Ubuntu:
snap install bitcoin-core
Etc.
In particular, what attack vectors might I be exposing myself to if I choose to install Bitcoin ...
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Should different brands of hardware wallets be used in multisig setups?
Is there genuinely a compelling reason to use different brands of hardware wallets in multisig setups? I am contemplating using a series of Coldcard hardware wallets in a multisig setup but some ...
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