I curious to know does this also have a negative effect on quick response codes generated by exchanges. I mean are the QR codes generated by exchanges safe for transactions? And how do they generate there own codes.
They probably use an open source library to generate the QR code. I wouldn't take away the possibility of an exchange or wallet getting supply-chain attacked like they already have before - meaning, a open source library is hijacked and altered to do stuff it shouldn't do, for example, generating a different address.
NPM dependencies, supply chain attacks, and Bitcoin walletsTo all cases, you should ALWAYS double check the address regardless if you're copy-pasting it or scanning a QR. Double, triple check it... at the beginning, middle and end.