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Reverse engineering a counterfeit 7805 voltage regulator
Update: It turns out my 7805 isn't counterfeit. eclectro did an in-depth search ( details on reddit ) and found an old 7805 datasheet fro...
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The latest blog posts to take off on Hacker News. 3,400 posts.
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If you want to start a startup, go work for someone else
When you look online for advice about entrepreneurship, you will see a lot of "just do it": The best way to get experience... is to start ...
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Zeroing buffers is insufficient
With a bit of care and a cooperative compiler, we can zero a buffer — but that's not what we need. What we need to do is zero every location where sensitive data might be stored. Remember, the whole reason we had sensitive information in memory in the first place was so that we could use it; and that usage almost…
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Recommended Security Reading
dfir.org is the personal page of Andrew Case ( @attrc ). This website serves as a central location for all of my research, software projects, and speaking events.
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I Am an Indie iOS Developer – Part 2
I develop apps for iOS
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Gradually sunsetting SHA-1
Cross-posted on the Chromium Blog The SHA-1 cryptographic hash algorithm has been known to be considerably weaker than it was designed t...
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Building a deeper understanding of images
Posted by Christian Szegedy, Software EngineerThe ImageNet large-scale visual recognition challenge (ILSVRC) is the largest academic challenge in c...
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Why Amazon Has No Profits and Why It Works
Amazon has a tendency to polarize people. On one hand, there is the ruthless, relentless, ferociously efficient company that’s building the Sears Roebuck of the 21st Century. But on the other, there is the fact that almost 20 years after it was launched, it has yet to report a meaningful profit. This chart captures…
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AM – Attribute Modules for CSS
A few months ago, I read an article by Harry Roberts where he introduced an interesting concept for working with related classes in CSS. In his article, he describes the use of the [] characters in class attributes to help understand their purpose at a quick glance. He presents this example, arguing that it makes the…
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Sophos News - The Sophos Blog
The Sophos Blog
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DPI Calculator / PPI Calculator
Noteworthy display sizes of monitors, PCs, notebooks, tablets, smartphones, smartwatches and HMDs. Link background color takes into account typical viewing distance:
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A Funny Thing Happened on the Way to Coursera
I’m excited to be teaching Stanford Law’s first Coursera offering this fall, on government surveillance . In preparation, I’ve been extensively poking around the platform; while I found some snazzy features, I also stumbled across a few security and privacy issues.
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Standard Markdown Is Now Common Markdown
Let me open with an apology to John Gruber for my previous blog post. We’ve been working on the Standard Markdown project for about two years now. We invited John Gruber, the original creator of Markdown, to join the project via email in November 2012, but never heard back.
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YC Investment Policy and Email List
We’re making a change to the rule for YC partners making follow-on investments. Previously, partners could invest in companies after they had either raised $500k or 3 weeks after Demo Day. This reduced a lot of the conflict and signaling issues, but not enough—partners investing during the batch still caused issues…
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How to zero a buffer
Now, we don't want to truly change the observable behaviour of our software — but fortunately the C standard has a more liberal concept of "observable" than most people. In particular, the C standard states that the observable behaviour includes accesses to volatile objects . What is a volatile object, you ask? It is…
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Nearly All U.S. Home Depot Stores Hit By Credit Card Theft
New data gathered from the cybercrime underground suggests that the apparent credit and debit card breach at Home Depot involves nearly all of the company’s stores across the nation.
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Generative eBook Covers
Here at NYPL Labs we’re working on an ebook-borrowing and reading app. This post explores automated ways for creating covers for public-dom…
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Isolating Football Player Movement by Eliminating Camera Motion
Note: This post departs from the general format used on this blog. That's because the post is not about a specific analysis I've done bu...
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Visualizing Garbage Collection Algorithms
Developers take garbage collection for granted, but it's hard to see how it works. Watch 5 different GC algorithm visualizations.
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Founder Stories: Tracy Young of PlanGrid (YC W12)
PlanGrid founders Tracy Young, Kenny Stone, Ryan Sutton-Gee and Ralph Gootee Tracy Young is the founder and CEO ofPlanGrid [http://www.plangrid.com/en], an app that lets construction companies store blueprints and documents on mobile devices. Since going through the YC’s Winter 2012 batch, PlanGrid has grown from a…
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