Patch for Windows Defender 0-day could allow attackers to fill hard disk
2026-07-12T08:51:41Z•0531a6bc0822d2cc367b8697f961a1e4b9a754a51adc140ad7e57f13350b9192
2fa-exposureai-securityamd-memory-encryptionbeats-studio-budsbotnetcredential-breachcrypto-clippereavesdroppingguest-vm-escapelinux-kernelllm-abusemacos-malwarenation-state-operationspamstealerpeoplesoftpost-quantum-cryptosecure-bootvulnerabilitywindows-defenderzero-day
What happened
A collection of recent cybersecurity news from Ars Technica covering multiple high-impact vulnerabilities, malware campaigns, and emerging threats. Notable items include a problematic Windows Defender 0-day patch that could allow attackers to fill disks, Linux guest-VM escape bugs, a critical PeopleSoft 0-day leaking gigabytes of data, new macOS infostealer (PamStealer), a self‑propagating crypto clipper, mass credential breach affecting major vendors, and several AI/LLM security issues (LLM‑driven botnet assembly and bypassable browser/guardrails). Also included: Secure Boot key deadline, AMD
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- arstechnica_security
- Record identifier
- 0531a6bc0822d2cc367b8697f961a1e4b9a754a51adc140ad7e57f13350b9192
- Enrichment time
- 2026-07-12T08:51:41Z
- AI-assisted enrichment
- Yes
This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.