Stay informed on the latest data breach incidents and security breaches. Protect your information with our up-to-date breach news and analysis.
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Background for this topic.
Breach means unauthorized access to a computer system or network that exposes or steals sensitive data like personal details, passwords, or proprietary information. Attackers often exploit software flaws, weak passwords, or social engineering to gain entry. Breaches can also result from insiders misusing access or accidental data exposure.
Understanding breaches is crucial because they reveal weaknesses in security controls and can lead to data theft or operational disruption. Effective defenses include promptly patching vulnerabilities, enforcing strong authentication, and segmenting networks to limit attacker movement. Detecting breaches quickly through monitoring and logging helps contain damage and guide targeted remediation efforts to secure affected systems and data.
Unit 42 Says Iranian Operators Target Aerospace and Government StaffPalo Alto Networks' Unit 42 said Iran-linked operators tied to Screening Serpens are using fake recruiting campaigns, cloned aerospace hiring portals and malware-laced job materials to infiltrate defense, satellite communications and government networks.
Researchers Trace Linux and Windows Toolsets to Suspected PRC Espionage ActivityNewly discovered malware tied to China-linked actors breached telecom providers across Asia and the Middle East, highlighting growing efforts to gain persistent access into interconnected communications infrastructure.
Lawmakers in both houses of Congress are demanding answers from the U.S. Cybersecurity & Infrastructure Security Agency (CISA) after KrebsOnSecurity reported this week that a CISA contractor intentionally published AWS GovCloud keys and a vast trove of other agency secrets on a public GitHub account. The inquiry comes as CISA is still struggling to contain the breach and invalidate the leaked credentials.
Ransomware and vendor breaches persist. The "2026 Data Breach Investigations Report" (DBIR) highlights how evolving social engineering tactics make the sector more vulnerable.
Advanced AI Models Find More Holes Than Enterprise Security Teams Can PlugArtificial intelligence models such as Anthropic's Mythos are rapidly exposing decades of hidden software security debt, forcing CIOs and CISOs to rethink vulnerability management, remediation capacity and the trade-offs between availability and breach prevention.
Also, YellowKey Gets CVE, 7-Eleven Breach, Linux Maintainers Warn on AI Bug SpamThis week, more incidents than we can list here. Among them: cloned Shai-Hulud malware, a new maximum CVSS Cisco flaw. Edge to stop loading passwords in plaintext. Tycoon 2FA offers a way around Microsoft multifactor. Convenience, taquitos and data breach: The 7-Eleven story. A MENA crackdown.
A threat actor compromised an Nx developer and posed as a legitimate maintainer to publish a malicious extension on Visual Studio Marketplace
Leakage blamed on treacherous friends exposed unencrypted credentials, email addresses
Grafana Labs has confirmed a recent data breach was caused by the TanStack supply chain attack
GitHub says the hackers who breached 3,800 internal repositories gained access via a malicious version of the Nx Console VS Code extension, compromised in last week's TanStack npm supply-chain attack. [...]
GitHub on Wednesday officially confirmed that the breach of its internal repositories was the result of a compromise of an employee device involving a poisoned version of the Nx Console Microsoft Visual Studio Code (VS Code) extension. The development comes as the Nx team revealed that the extension, nrwl.angular-console, was breached after one of its developers' systems was hacked in the
GitHub confirmed a data breach this week involving the theft of thousands of developer code repositories. One threat actor — TeamPCP — took credit.
The Grafana data breach was caused by a single GitHub workflow token that slipped through the rotation process following the TanStack npm supply-chain attack last week. [...]
GitHub on Tuesday said it's investigating unauthorized access to its internal repositories after the notorious threat actor known as TeamPCP listed the platform's source code and internal organizations for sale on a cybercrime forum
The prolific threat group TeamPCP has claimed a hack into GitHub’s internal repositories
GitHub has confirmed that roughly 3,800 internal repositories were breached after one of its employees installed a malicious VS Code extension. [...]
Grafana Labs, on May 19, 2026, said an investigation into its recent breach found no evidence of customer production systems or operations being compromised
GitHub is investigating a breach of its internal repositories after the TeamPCP hacker group claimed to have accessed approximately 4,000 repositories containing private code. [...]
Incident Involved an Unnamed Third-Party VendorNew York City's municipal healthcare system is notifying nearly 2 million patients of a hacking incident discovered earlier this year involving a third-party vendor. The breach compromised a long list of information, including biometric data such as fingerprints.
Verizon's 2026 Data Breach Investigations Report (DBIR) finds that exploits are now involved in 31% of initial access for breaches, while patching lags too far behind the bad guys.