The sun’s activity waxes and wanes over an 11-year cycle. We’re currently in a quiet cycle that ends in 2025. While predictions of the next cycle show the sun will be quiet for another 11 years, recent sunspots and flares suggest the predictions are wrong. In the worst case, we could experience something similar to the 1859 Carrington Event that fried telegraph machines. Today, however, we rely on the internet, satellites, and other electronics that would be susceptible to a massive solar storm.

Source: https://www.msn.com/en-us/news/technology/can-strong-solar-storms-take-down-the-internet-scientist-says-its-possible/ar-AA1k2Isf

1859 Carrington Event: https://en.wikipedia.org/wiki/Carrington_Event

1977 Solar Storm: https://www.livescience.com/space/the-sun/solar-storm-from-1977-reveals-how-unprepared-we-are-for-the-next-big-one

NASA: https://www.nasa.gov/solar-system/solar-superstorms-of-the-past-help-nasa-scientists-understand-risks-for-satellites/

NASA: https://science.nasa.gov/sun