Hacker News on 15 February 2021

• SolarWinds hack was 'largest and most sophisticated attack' ever: MSFT president
• Israeli study finds 94% drop in symptomatic Covid-19 cases with Pfizer vaccine
• Show HN: ustaxes.org – open-source tax filing webapp
• Faster JavaScript Calls
• Mining Bitcoin with pencil and paper: 0.67 hashes per day (2014)
• Launch HN: Noya (YC W21) – Direct air capture of CO2 using cooling towers
• Spotify is letting employees work from anywhere while paying SF and NY salaries
• Sonobus: Open-source app for low latency peer-to-peer audio
• Obfuscated Tiny C Compiler
• YouTubers have to declare ads. Why doesn't anyone else? [video]