FEATURED
Security researchers have discovered a critical zero-day vulnerability affecting all modern versions of Windows, allowing attackers to gain SYSTEM privileges.
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Data Breaches
Other noteworthy stories that might have slipped under the radar: Abnormal AI sued by Anthropic, AssuranceAmerica data breach affects 7 million people, NSA brings back TAO. The post In Other News: DHS Database Hacked, Adobe Boosts Patch Cadence, Canada Disrupts Ransomware Ops appeared first on SecurityWeek.
Research
New research shows that a signed Git commit's hash is not the one-of-a-kind name that much of the software world assumes it to be. Given any signed commit, someone without the signing key can mint a second commit with the same files, author, and date, and a valid signature, GitHub still stamps "Verified." Everything a reviewer would check matches. The commit's hash does not. That matters
Vulnerabilities
Adversaries could plant a malicious repository that can execute arbitrary code and steal cloud credentials by exploiting the vulnerability, which showcases growing MCP risk.
Vulnerabilities
A use-after-free bug in Linux's KVM hypervisor can be triggered from a guest virtual machine to corrupt the shadow-page state of the host kernel that runs it. Dubbed 'Januscape' and tracked as CVE-2026-53359, the flaw sits in the shadow MMU code that KVM shares across both Intel and AMD. The public proof-of-concept panics the host; the researcher claims that a separate, unreleased exploit
Threats
A recent EvilTokens campaign targeting businesses across the US and Europe is exposing a new email security blind spot. This “ghost phishing” technique keeps the malicious page hidden until it decrypts and comes to life inside the victim’s browser. For security leaders, the risk is clear: traditional URL checks may miss the attack while Microsoft 365 access, sensitive data, and response time
Data Breaches
Unknown threat actors compromised the Injective Labs SDK project's GitHub repository and leveraged it to publish a malicious package on the npm registry to steal cryptocurrency wallet private keys and mnemonic seed phrases. The compromised version, @injectivelabs/sdk-ts@1.20.21, came embedded with fake telemetry functionality that exfiltrated data from cryptocurrency wallets. The version was
Malware
For the past four years, a sprawling Android-based botnet called Popa has forced millions of consumer TV boxes to relay Internet traffic linked to advertising fraud, account takeovers, and mass data-scraping efforts. This week, researchers from multiple security firms concluded that the Popa botnet is linked to NetNut, a "residential proxy" provider operated by the publicly-traded Israeli firm Alarum Technologies Ltd [NASDAQ: ALAR].
Threats
AI agents are accelerating the growth of non-human identities, making it harder for organizations to understand what exists, who owns it, and what it can access. Netwrix explains why stronger visibility and identity governance are essential as AI expands the enterprise attack surface. [...]
Research
Most security mess starts as admin work. A link gets clicked. A tool gets trusted. A bucket name gets reused. A setting stays loose because nobody wants to touch it. This week is full of that kind of damage. Not loud. Not clever. Just small gaps doing big jobs. The worst part is how normal it all looks until the bill arrives. The full ThreatsDay list is below. Global
Data Breaches
For years, account takeover (ATO) followed a predictable script. Attackers bought stolen credentials in bulk, ran them through automated tools, and waited for matches. Credential stuffing was cheap, scalable, and for defenders, relatively well understood. That era is ending. Not because attackers gave up, but because the front door finally got harder to kick in. Passkeys are now mainstream.