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Daily Dose of Cybersecurity News - September 21, 2025

Fake GitHub Repositories Distribute Atomic Infostealer Targeting macOS Users

High

What happened

Threat actors are creating fraudulent GitHub repositories that impersonate legitimate software tools to distribute the Atomic infostealer malware to macOS users.

Who is affected

macOS users seeking to download popular applications such as LastPass, 1Password, Dropbox, and others are at risk of infection.

Why it matters

The Atomic infostealer can exfiltrate sensitive information, including credentials and financial data, posing significant security and privacy risks to individuals and organizations.

How it could have been prevented

Users should download software exclusively from official sources and verify the authenticity of repositories before downloading. Implementing endpoint protection solutions can also help detect and prevent malware infections.

Relevant professional terms

SEO Poisoning
A technique where attackers manipulate search engine rankings to promote malicious websites.
Infostealer Malware
Malicious software designed to collect and exfiltrate sensitive information from infected systems.

Recommended reading: blog.lastpass.com