A significant power outage in San Francisco on Saturday affected 130,000 households and businesses, disrupting access to cryptocurrency wallets and exchanges. The outage, triggered by a fire at a PG&E substation, underscored the dependency of real-world crypto usage on stable power and internet connections. While blockchain networks like Bitcoin and Ethereum remained operational, users in the affected area were unable to access their accounts, highlighting the risks associated with hardware wallets and the necessity for backup solutions for crypto holders.