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Security & Privacy

The most popular blog posts about security & privacy on Hacker News. 8,773 posts.

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7863

Private Home Directories for Ubuntu 21.04

Ubuntu has evolved a lot since its early beginnings as an easier-to-use derivative of Debian that catered primarily to the nascent Linux desktop market. Today Ubuntu is deployed beyond just your laptops at home and in the office. Nowadays you are more likely to find Ubuntu in the cloud, powering some of the world’s…

7869

Don’t Hash Secrets

Building secure systems is difficult. It would be nice if we had a bunch of well-designed crypto building blocks that we could assemble in all sorts of ways and be certain that they would, no matte…

7872

Quantum is unimportant to post-quantum

You might be hearing a lot about post-quantum (PQ) cryptography lately, and it’s easy to wonder why it’s such a big deal when nobody has actually seen a quantum computer. But even if a quantum computer is never built, new PQ standards are safer, more resilient, and more flexible than their classical […]

7873

Yet Another "People Plug in Strange USB Sticks" Story

I’m really getting tired of stories like this: Computer disks and USB sticks were dropped in parking lots of government buildings and private contractors, and 60% of the people who picked them up plugged the devices into office computers. And if the drive or CD had an official logo on it, 90% were installed. Of course…

7874

Memory safety for the world’s largest software project

Rust for Linux and Prossimo The Rust for Linux project aims to bring a new system programming language into the Linux kernel. Rust has a key property that makes it very interesting to consider as the second language in the kernel: it guarantees no undefined behavior takes place (as long as unsafe code is sound)…

7890

Block web scanners with ipset and iptables

Anybody who runs an internet-facing webserver has seen their fair share of spammy scanners in the logs. It varies server to server, but some of mine get up to 15,000 scans per day. Almost all of these are harmless network mappers, but they still annoy me. Many are compromised hosts or belong to hackers & organized…