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Security & Privacy

The most popular blog posts about security & privacy on Hacker News. 8,770 posts.

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5911

Safe from what?

What does it mean for a baby monitor to be safe? Some things are clearly essential: It should not explode; it should not release significant quantities of dangerous gasses; if it's designed to be placed within reach of a baby, it should not pose an electrocution or choking hazard. Less obviously, if it has data or…

5917

Scammers registering date-based domain names

Yesterday, January 2nd, my wife received a billing alert from her phone provider. Luckily, she's not with EE - because it's a pretty convincing text. That domain name is specifically designed to include the day's date. If you're stood up on a crowded train, with your phone screen cracked, would you notice that a . is…

5918

Sam Altman Wants Your Eyeball

Last week, OpenAI's CEO Sam Altman announced in San Francisco that the World project he co-founded, formerly known as Worldcoin, is opening six stores across the United States, allowing users of the project's app to scan their eyeballs. This is worrisome, to say the least.

5922

Lifetimes of cryptographic hash functions

Quick summary of my recommendations on compare-by-hash: If you are using compare-by-hash to generate addresses for data that can be supplied by malicious users, you should have a plan to migrate to a new hash every few years. For example, BitTorrent falls into this category, but rsync doesn't. Keep in mind that new…

5926

Cybersecurity and the curse of binary thinking

Working in information/cybersecurity and technology risk is a fascinating and challenging career, as I’ve covered here. There is, mostly, a great spirit of sharing and collaboration among security professionals. However, I’ve observed one disturbing and growing trend in the past few years that might be characterized…

5930

The NSA Is Hoarding Vulnerabilities

The National Security Agency is lying to us. We know that because data stolen from an NSA server was dumped on the Internet. The agency is hoarding information about security vulnerabilities in the products you use, because it wants to use it to hack others’ computers. Those vulnerabilities aren’t being reported, and…

5935

I revoked $1M worth of EV certificates

Personal like or dislike of EV aside for a moment, we can all agree on what the name of EV certs implies. Organisations get their company details in the certificate and CAs have to do some extended validation of that data compared to a normal certificate. Turns out, that doesn'