Ask HN: How do I keep my elderly father safe on the internet?

My dad, age 85 and a lifelong technophobe bordering on tech-hostile, began using a MacBook Air and iPhone regularly a few years ago. His activities are basic: text me and family, email, photos, read about art and music via sites found on Google, YouTube for how-to videos about specific art techniques, language learning with Duolingo and help from Google Translate, […]