Latest cybersecurity reporting from selected sources.

Supply-Chain Attack Uses Malicious GitHub Actions Workflow File to Steal SecretsMore than 5,000 GitHub repositories fell victim to an automated campaign, codenamed "Megalodon," in which an attacker injected malicious GitHub Actions that executed a script designed to steal development environment secrets, plus a variety of keys, tokens and other credentials, researchers said.

A Single Developer Downloaded a Poisoned VS Code Extension, and Now LookGitHub warned late Tuesday that hackers stole roughly 3,800 internal repositories from the Microsoft-owned platform after a developer used a poisoned VS Code script, which is developed by Microsoft. TeamPCP and Lapsus$ appear to be cooperating to sell the stolen data for $95,000.

Malicious npm Package Lets Attackers Capture Refreshed TokensA researcher has mapped a five-step attack on Claude Code that intercepts the credentials giving AI agents access to Jira, GitHub and Confluence, and demonstrated that the standard incident response move, rotating the stolen token, hands the attacker a fresh one.

Also, Medusa Ransomware, Grafana Flaw, German Political Party BreachThis week, German police unmasked a REvil leader, a critical Docker flaw, Medusa ransomware surged, DPRK hackers abused GitHub, Grafana AI bugs enabled data theft, scams hit $20B in the United States, Ivanti exploited and attacks hit Northern Ireland schools and a German political party.

Researcher Found Bug Could Exfiltrate Secrets Via Camo ImagesA now-patched flaw in GitHub Copilot Chat could have allowed attackers to steal private source code and secrets by embedding hidden prompts that hijacked the artificial intelligence assistant's responses. The exploit also used the code hosting platform's image proxy to leak the stolen data.

Group Reportedly Scanned Salesloft's Source Code on GitHub, Recovered OAuth TokensThe ShinyHunters extortionists behind data-grabbing August attacks on Salesloft Drift users claim to have stolen 1.5 billion Salesforce records from 760 companies after breaching Salesloft's private Git repository and scanning it for secrets, which led to them recovering working OAuth tokens.

Salesloft Says Hackers Broke Into Its GitHub RepositoryCybersecurity firms Tenable and Qualys fell to attacks stemming from hacker theft of authentication tokens from a third-party tool often integrated into Salesforce. The firms disclosed their exposure to the attack that lifted access tokens from marketing-as-a-service software provider Salesloft.

Over 23,000 Code Repositories at Risk After Malicious Code Added to GitHub ActionAttackers subverted a widely used tool for software development environment GitHub, potentially allowing them to steal secrets from thousands of private code repositories as well as compromise other, widely used "open source libraries, binaries and artifacts" that use the tool, experts warned.

'Marstech1' Malware Targets Developers Through GitHub RespositoryNew North Korean malware is targeting cryptowallets with an unconventional command-and-control infrastructure and through malware embedded into a GitHub repository that's apparently the account of a Pyongyang hacker. The implant appears to have emerged late last December.