A profile of Cliff "Cuckoo's Egg" Stoll, a pioneering "hacker hunter"

Cliff Stoll (previously) is a computing legend: his 1989 book The Cuckoo's Egg tells the story of how he was drafted to help run Lawrence Berkeley Lab's computers (he was a physicist who knew a lot about Unix systems), and then discovered a $0.75 billing discrepancy that set him on the trail of East German hackers working for the Soviet Union, using his servers as a staging point to infiltrate US military networks. Read the rest

Fix your floppy pizza slice with Gaussian curvature

It turns out that folding a pizza slice lengthwise to improve its rigidity is a great example of the "Remarkable Theorem" by Gauss. Cliff Stoll explains. Read the rest