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Security & Privacy
The most popular blog posts about security & privacy on Hacker News. 4,333 posts.
iCloud Drive silently deletes your content
The first time it happened, I was writing a paper. The paragraphs I had just typed vanished into thin air, faster than Time Machine or Backblaze could save them. Gone. The next occurrence was during app development; Xcode suddenly flagged numerous errors in previously error-free code. My recent changes to several…
This year’s insane timeline of hacks
An archive of this year’s insane timeline of hacks few people are talking about
How I re–over-engineered my home network for privacy and security
How I used Docker Compose, Ansible, and Caddy to re-over-engineer my network setup for easier maintenance, treating my Raspberry Pi like cattle, not a pet.
How the Dreamcast Copy Protection Was Defeated
After I shipped the DOOM Black Book , I took some vacation in Japan where I was able to play Ikaruga on a real arcade at Taito HEY in Akihabara. The experience reignited my interest in SEGA's ultimate video game console, the Dreamcast. There is a lot of documentation available online which made the studying process…
What I Learned Trying to Secure Congressional Campaigns
You know how it happens. You try to secure one Congressional campaign, and then another, and pretty soon you can't stop. You'll fly across the country just to brief a Green Party candidate in a district the Republicans carried by 60 points. You want more, more, always looking for that next fix.
Spotting base64 encoded JSON, certificates, and private keys
A colleague spotted base64-encoded JSON in a long string of gibberish without any tools. I was amazed, until he explained how anyone can do it.
‘Evil Corp,’ a $100M Cybercrime Menace
The U.S. Justice Department this month offered a $5 million bounty for information leading to the arrest and conviction of a Russian man indicted for allegedly orchestrating a vast, international cybercrime network that called itself “ Evil Corp ” and stole roughly $100 million from businesses and consumers. As it…
Beware: Windows 10 Signature Edition Blocks Installing Linux
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Authenticated Boot and Disk Encryption on Linux
Posts and writings by Lennart Poettering
Air Gaps
Since I started working with Snowden’s documents, I have been using a number of tools to try to stay secure from the NSA. The advice I shared included using Tor, preferring certain cryptography over others, and using public-domain encryption wherever possible. I also recommended using an air gap, which physically…
Have I Been Pwned Is Now Partnering with 1Password
The penny first dropped for me just over 7 years ago to the day: The only secure password is the one you can't remember [https://www.troyhunt.com/only-secure-password-is-one-you-cant/]. In an era well before the birth of Have I Been Pwned [https://haveibeenpwned.
Inside ZCode: Silently uploading your Git history to the cloud
ZCode silently uploads full Git history to the cloud; this post provides a block rule and source review — checkpoint claims fall apart against the code.
7-Zip: From Uninitialized Memory to Remote Code Execution
Blog about anti-virus software vulnerabilities.
Let’s Encrypt to transition to ISRG root
Let's Encrypt have announced that on July 8th, 2019 they will begin issuing new certificates from their own intermediate CA and not their current cross-signed intermediate. Here's what that means and what action, if any, site operators need to take…
Mitigating the Hetzner/Linode XMPP.ru MitM interception incident
(If you just want some recommendations for what to do, skip down to the Recommendations section below .)
Extracting Qualcomm's KeyMaster Keys – Breaking Android Full Disk Encryption
A security blog focusing on Android, the Linux Kernel and everything nice.
What's OAuth2, anyway?
Why the OAuth2 protocol was designed the way it is and how it works.
WInd3x, the iPod Bootrom exploit 10 years too late
This is a write-up of the wInd3x bootrom exploit affecting iPod Nanos from 3rd gen to 5th gen. A ready-made tool to use this exploit is available at github.com/freemyipod/wInd3x .
Equifax Breach Fallout: Your Salary History
In May, KrebsOnSecurity broke a story about lax security at a payroll division of big-three credit bureau Equifax that let identity thieves access personal and financial data on an unknown number of Americans. Incredibly, this same division makes it simple to access detailed salary and employment history on a large…
Finding bugs in SQLite, the easy way
SQLite is probably the most popular embedded database in use today; it is also known for being exceptionally well-tested and robust. In co...
The cleverest floppy disc protection ever? Western Security Ltd
Introduction I've been on a bit of a floppy disc protection odyssey recently. This will probably be the last floppy disc related post for so...
How I tripped over the Debian weak keys vulnerability
Those of you who haven’t been in IT for far, far too long might not know that next month will be the 16th(!) anniversary of the disclosure of what was, at the time, a fairly earth-shattering revelation: that for about 18 months, the Debian OpenSSL package was generating entirely predictable private keys .
Reverse engineering a custom CPU from a single program
or: reverse-engineering a custom, unknown CPU from a single programtl;dr: We reverse-engineered a program written for a completely custom, unknown CPU architecture, without any documentation for th…
Our Newfound Fear of Risk
We’re afraid of risk. It’s a normal part of life, but we’re increasingly unwilling to accept it at any level. So we turn to technology to protect us. The problem is that technological security measures aren’t free. They cost money, of course, but they cost other things as well. They often don’t provide the security…
APFS is not safe to use with names which have Unicode normalisation issues
APFS is not currently safe to use with names which might have Unicode normalisation issues – which means it is only safe with a limited ASCII character set.
How I Made a Heap Overflow in Curl
In association with the release of curl 8.4.0, we publish a security advisory and all the details for CVE-2023-38545. This problem is the worst security problem found in curl in a long time. We set it to severity HIGH. While the advisory contains all the necessary details. I figured I would use a few additional ……