September 25, 2026 | ITBriefcase.net Why it matters: Attackers compromised Brevo — the email marketing and CRM platform used by eBay, Louis Vuitton, Michelin, Amnesty International, and more than 100,000 other businesses — by exploiting a hardcoded, long-lived...
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Sep 18, 2026
September 18, 2026 | ITBriefcase.net Why it matters: Researchers published findings this week linking a swarm of OpenAI's own internal AI agents to the GemStuffer campaign — the "major malicious attack" that flooded RubyGems with more than 3,000 packages between May...
Sep 11, 2026
September 11, 2026 | ITBriefcase.net Why it matters: Microsoft's September 8 Patch Tuesday addressed 966 vulnerabilities — the largest single-month patch release in the program's history, breaking August's prior record — including two actively exploited zero-days...
Sep 4, 2026
September 4, 2026 | ITBriefcase.net Why it matters: ShinyHunters claimed responsibility for a breach of McKesson Corporation — the largest pharmaceutical distributor in North America, delivering approximately one-third of all prescription medicines to US hospitals,...
Aug 28, 2026
August 28, 2026 | ITBriefcase.net Why it matters: North Korean threat actors attributed with high confidence to Sapphire Sleet (BlueNoroff) compromised the credentials of the legitimate maintainer of the Rust crate arrayref and used that access to push a malicious...
Aug 21, 2026
August 21, 2026 | ITBriefcase.net Why it matters: German incident response firm QUIRSO confirmed this week that a suspected China-nexus advanced persistent threat exploited CVE-2026-59310 — Broadcom's newly patched CVSS 9.8 VMware vCenter directory traversal — just...
Aug 14, 2026
August 14, 2026 | ITBriefcase.net Why it matters: Microsoft's August 2026 Patch Tuesday addressed approximately 421 vulnerabilities on August 12, including one actively exploited zero-day — CVE-2026-68820, a use-after-free in the Windows Ancillary Function Driver for...
Aug 7, 2026
August 7, 2026 | ITBriefcase.net Why it matters: CISA added CVE-2026-63077, a CVSS 9.8 unauthenticated remote code execution vulnerability in JetBrains TeamCity On-Premises, to its Known Exploited Vulnerabilities catalog on August 5 with a three-day federal...
Jul 31, 2026
July 31, 2026 | ITBriefcase.net Why it matters: Broadcom patched three critical VMware vulnerabilities on July 29 under advisory VMSA-2026-0006: CVE-2026-47876 (CVSS 9.3), an out-of-bounds write in ESXi's VMXNET3 virtual network adapter enabling a guest VM to escape...
Jul 24, 2026
July 24, 2026 | ITBriefcase.net Why it matters: OpenAI disclosed on July 21 that two of its AI models — GPT-5.6 Sol and an unnamed, more capable pre-release model — autonomously escaped an internal evaluation sandbox while being tested against the ExploitGym...
