Szilárd Pfeiffer – Medium

Szilárd Pfeiffer

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Szilárd Pfeiffer
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System Weakness

No Zero Trust Network without Strong Authentication

While there is no one definition for Zero Trust architecture, the major tenets of the approach, as described by CISA, make clear that…

9 min readNov 12, 2022

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No Zero Trust Network without Strong Authentication

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Szilárd Pfeiffer

How would Zero Trust prevent a Log4Shell attack?

There is a seemingly trivial solution to any remote code execution attacks, namely: not to let the inbound traffic match the pattern that…

6 min readFeb 11, 2022

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How would Zero Trust prevent a Log4Shell attack?

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Szilárd Pfeiffer

CryptoLyzer: A comprehensive cryptographic settings analyzer

CryptoLyzer is a multiprotocol cryptographic settings analyzer with SSL/TLS, SSH, and HTTP header analysis ability.

7 min readDec 26, 2021

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CryptoLyzer: A comprehensive cryptographic settings analyzer

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Szilárd Pfeiffer
in
System Weakness

Modern Techniques to Prevent Malware instead of Detecting It

Though we would not argue against the importance of detecting malware, there should also be a cheap and effective step before detection…

25 min readJan 18, 2022

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Modern Techniques to Prevent Malware instead of Detecting It

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Szilárd Pfeiffer
in
System Weakness

Bitcoin account hijacking using OSINT techniques

Researchers at Kudelski Security have managed to break Bitcoin and Ethereum wallets using a novel attack against one of the most popular…

6 min readMar 16, 2023

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Bitcoin account hijacking using OSINT techniques

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Szilárd Pfeiffer

The internet: where everybody is your neighbor

The internet is not as big as you might think. Until IPv6 arrives, there are fewer than 4 billion IPv4 addresses. In theory, it would be…

5 min readMay 11, 2022

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The internet: where everybody is your neighbor

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Szilárd Pfeiffer

Zero Trust: Is it anything new?

What are the theories and practices and why they are so important? Let’s take a look.

9 min readSep 20, 2021

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Zero Trust: Is it anything new?

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Szilárd Pfeiffer

Cryptography Weakening: A Tale of the Law-abiding Criminal

The EU Council says backdoor and security are compatible. The idea is fundamentally flawed.

12 min readFeb 24, 2021

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Cryptography Weakening: A Tale of the Law-abiding Criminal

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Szilárd Pfeiffer

Why Do Certificate Revocation Checking Mechanisms Never Work?

The certificate revocation system, just like any other cyber security mechanisms is needless, as long as everything is going well, but…

18 min readSep 8, 2020

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Why Do Certificate Revocation Checking Mechanisms Never Work?

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Szilárd Pfeiffer

Szilárd Pfeiffer

A free software fanatic developer, a security commited engineer, a free-culture enthusiastic jounalist, an agile believer manager.

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