Craig Newmark, the 71-year-old founder of Craigslist, has made headlines with his recent pledge of $100 million to bolster U.S. cybersecurity efforts. This donation adds to his impressive total of $400 million pledged to various charitable causes since 2015.
Newmark, who was valued at $1.3 billion in 2020, has committed to giving away nearly all of his wealth, a promise he made in December 2022.

