Is the built-in wallet open source? If not then avoid using it. Remember what Andreas Antonopoulos always says: "not your keys, not your bitcoins".
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I tried looking it up but there's no "open-source" reference to it anywhere on DuckDuckGo. I doubt it's open-source too. It looks like they do not have KYC though for now, which is good news. Here's the quote from
cryptoiq.co:
What makes this service even more competitive than Coinbase is that users do not have to create an account or go through intensive know your customer (KYC) verification on the Opera browser, users simply have to enter in their payment information.
(..)
Further, it is rare to find an exchange where crypto can be bought instantly with little KYC and for low fees, and in general Opera’s crypto service could prove useful for all crypto users who need a hassle free way to buy crypto.
If there was a KYC-free open source wallet that allows debit card purchases, it would be amazing. I'm just kinda afraid to use debit cards now, considering the fact that we're in the middle of an economical recession.
