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Threat Research

Maintainer Account Takeover Attacks: Hijacking Trust in Open Source

A maintainer account takeover lets an attacker publish malicious versions of a trusted package under a legitimate identity. Here is how it happens and how to defend.

Jul 3, 20266 min read
Threat Research

Lessons from the XZ Utils Backdoor: A Three-Year Social Engineering Heist

CVE-2024-3094 was a backdoor patiently planted in XZ Utils over years of social engineering, caught by an engineer chasing half a second of SSH latency. Here is the full story.

Jul 3, 20266 min read
Threat Research

What Is Protestware? When Maintainers Weaponize Their Own Packages

Protestware is open-source code a maintainer deliberately alters to make a political or personal statement, sometimes sabotaging users. Here is how it works and how to defend.

Jul 2, 20266 min read
Threat Research

Lessons from Log4Shell: How One Logging Call Became the Internet's Worst Weekend

CVE-2021-44228 let an unauthenticated attacker run code by getting a single string logged. Here is how Log4Shell worked, why it was everywhere, and what actually contained it.

Jul 2, 20266 min read
Threat Research

What Is a Software Supply Chain Attack? Explained

A software supply chain attack compromises the code, tools, or pipeline your software depends on — not the product itself. Here is how it works and how to defend.

Jul 1, 20267 min read
Threat Research

What Is a Malicious Package? Supply-Chain Malware in Open Source

A malicious package is an open-source component built or altered to run attacker code on install or at runtime. Here is how they work, real npm and PyPI cases, and how to defend.

Jul 1, 20266 min read
Threat Research

Lessons from SolarWinds: When the Build Pipeline Becomes the Attack Surface

The SUNBURST backdoor reached roughly 18,000 organizations through a trojanized SolarWinds Orion update. Here is what actually happened, and the defenses that hold up years later.

Jul 1, 20266 min read

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