Sofia Marquez

Sofia has been writing about cryptocurrency since 2018 and joined VendKeys.com to cover the intersection of digital payments and software purchasing. Her work focuses on how crypto rails (Bitcoin, USDT, Monero, Ethereum, Lightning Network) are reshaping how consumers and businesses pay for digital goods.

Before VendKeys.com, Sofia contributed to several crypto-focused publications and helped run merchant-adoption pilots in Latin America and Southeast Asia. She's particularly interested in how privacy-preserving payments enable cross-border software access in markets where traditional rails are unreliable or expensive.

Sofia is based in Buenos Aires and writes practical guides on paying with crypto, choosing the right cryptocurrency for the job, and the privacy/anonymity tradeoffs of digital payments.