EDIT: 12 -> 11 iOS version correction
URLs -> Safari
Locations -> Maps
Contacts -> Contacts
WiFi SSID/password -> Join network
I find I have to walk people through it, so iOS/Android ui designers have work to do to make it more discoverable
Change size as needed.
Even if a site isn't branded for cryptography they just have to sit and wait for input that looks like a bitcoin address. They can be old a reputable too - but if somebody buys that website (as has been done with other websites/browser extensions, also another user in this thread reports receiving such offers) there would be no way to know.
They could behave correctly until they see a wallet address, etc., so creating and verifying using separate means is essential.
Personnal experience : my landowner wanted me to buy a pair of MBT shoes and found a site named mbtsolde.com (equivalent in english to mbtsales) which offered mbt shoes at high discount. Upon payment, the site proposed no paypal or the usual gateways present on french/belgian e-commerce but instead only traditional credit card (mastercard and the like).
I signified to my land owner I didn't trust the site, adding paypal was a good indication about the trust you could grant to an e-commerce. After further searching, I discovered MBT shoes were subject to scams by chinese companies impersonnating specialised MBT stores and that the issues was nearly ten years old.
For privacy concern I don't use (or rarely) google anymore directly and use instead searx, a open source metasearch engine providing anonymized results of a hundred classic and specialized search engine, like yandex, yahoo, bing, qwant, faroo, google, but also torrent site search engine, wikipedia and other specialised sites...
It took me again 2 other searches with words like "fake mbt shoes" and "how to recognize fake mbt ?" to finally find the real official MBT site and its european shop on a subdomain, on a YANDEX search result. The site even inform the visitor it put in place a certification to recognize authentic shoes and get informed of the official local dealer where to buy mbt shoes. On the Google side, most search result were either scam sites, scam blog posts advertizing scam sites pretending to inform visitor about fake MBT shoes and amazon search results about MBT shoes (which has an endemic counterfeit products issue).
I guess most of the alternatives are just as insecure and annoying, or worse. NFC isn't really any better, for instance. Logins and touchscreens are no fun, either.