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Cybersect

Robert Graham

Musings about cybersecurity

Platform
Substack
PricingOnly free issuesPublishesWeekly
Issues81Founded5 years agoLast Issue4 months ago
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Latest Issues

Pi is exactly 3.141592653589793

The value of pi π is 3.141592653589793. That’s the value held in an IEEE 754 64-bit floating point, how modern CPUs do number crunching. If you need pi π for a calculation, that’s the value you’ll end up using 99% of the time. This is the v...

4 months ago
9
4

More IPv4 address parsing

Recently, Daniel Lemire had a blogpost pointing out that AI produced surprisingly fast code for parsing IPv4 addresses. As a “parser” guy, I have some comments.

The summary is this:

  • his benchmarks were flawed, though the code is indee...
5 months ago
2
1

Unredaction isn't hacking

This Guardian article says that “Epstein file redactions are being undone with hacks”. They aren’t hacks — the files simply weren’t redacted in the first place.

They looked redacted. They had black bars over the text, preventing humans fro...

6 months ago
18
3

Experts vs. WiFi privacy vs. VPNs

What ChatGPT imagines a hacker eavesdropping on a network wire looks like. It got the number of fingers correct.

Recently on the socials there was a discussion whether VPNs are needed to protect your privacy while on WiFi. As an expert, I...

7 months ago
20
7

The Nihilistic Cybersecurity Certification (NCC) exam

There has been some discussion on certification of cybersecurity professionals. I’ve formulated this test to see if you truly have experience in this field. (Most questions pulled from other sources, with the help of AI)).


Sectio...

7 months ago
18
2

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  • Robert Graham

    Created:[BlackICE,IPS,sidejacking,masscan]. Doing:[blog,code,cyber-rights,Internet-scanning]. Unethical coder.

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