Looks like itās a web-based hot wallet first released in 2015. Predates modern best practices around key material security. https://github.com/OutCast3k/coinbin/releases
Discussion
Interesting, I think it's still used to publicly share verification data by some.
I havenāt looked at the capabilities, but it would be reasonable to use for, say, getting an address from a recipientās XPUB. Something like that.
If you wanted to use it offline with TailsOS, that could make sense, if it was just one part of a multisig quorum.
I would NOT recommend using it as a single-sig wallet, especially not online. Risk of leakage too great.
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