🚨 Attackers exploited a Zimbra flaw to plant web shells and harvest authentication secrets.

CVE-2026-73570 can be triggered by a crafted SMTP request when SNMP notifications are enabled and zimbra-snmp is installed.

Read: https://thehackernews.com/2026/09/attackers-exploit-zimbra-flaw-to-deploy.html

⚠️ Citrix NetScaler attackers are using a second-stage payload that creates a superuser and disguises a PHP web shell behind CSS-like URLs.

The same Perl script stages configuration data for upload, changes /bin/sh permissions, and erases itself after execution.

Details: https://thehackernews.com/2026/10/citrix-netscaler-post-exploitation.html

One “Continue” click can give a malicious OAuth app access to your entire mailbox.

Material Security VP Rajan Kapoor demonstrates email exfiltration, lateral movement, and covert deletion, no password or malware required.

How the OAuth abuse works: https://thehackernews.com/videos/2026/09/one-click-on-continue-can-hand.html

🚨 MetaMask is exiting affected Ethereum validators as it deals with an ongoing security incident.

It says there’s no immediate threat to MetaMask wallets. Lido says the exits will likely mean foregone rewards and could bring downtime penalties.

What MetaMask has disclosed so far: https://thehackernews.com/2026/10/metamask-security-incident-prompts-exit.html

⚡ Attackers exploited a zero-day in a third-party security product to steal $387.5 million from Bitget.

Mandiant found the intruders compromised security appliances, moved laterally into Bitget’s wallet environment, and deployed malicious packages on the wallet job server.

Read: https://thehackernews.com/2026/10/bitget-confirms-third-party-zero-day.html

‼️ Warning: A malicious PDF can trigger controlled memory corruption in Apple CoreGraphics.

Apple says CVE-2026-86950 may have been used in targeted attacks.

The first public PoC is now out, while WhatsApp PDF checks hint at a possible delivery path that remains unconfirmed.

Details → https://thehackernews.com/2026/10/apple-coregraphics-poc-emerges-as.html

⚡ Google is rolling out Gemini 4 Argon to trusted cyber defenders.

The model can autonomously find, validate, and patch critical software flaws. Google says Argon also found an undisclosed healthcare vulnerability exposing sensitive personal data.

Read: https://thehackernews.com/2026/10/google-rolls-out-gemini-4-argon-to.html

🛑 An actively exploited Cisco SD-WAN flaw can give unauthenticated attackers admin-level API access.

CISA has added CVE-2026-76504 to its KEV catalog. Federal agencies have until Oct. 3 to apply the fix.

What defenders should hunt for: https://thehackernews.com/2026/10/cisa-adds-exploited-cisco-catalyst-sd.html

⚡ OpenAI says it disrupted a coordinated campaign tied to Moonshot AI associates that tried to extract protected model reasoning.

The activity peaked at 16,000 attempted extraction-pattern requests from 4,000+ users in two days.

Read: https://thehackernews.com/2026/10/openai-disrupts-reasoning-extraction.html

Your vendor risk assessment from six months ago is already out of date.

Employees connect new integrations. AI agents get added. Vendors ship new features, change their privacy policies, or disclose a breach. A point-in-time review doesn't adapt as risks change.

That's why Nudge Security built adaptive risk management:
🎯 Every app is automatically tiered by business criticality, based on how broadly it's used and the sensitivity of the data it can access.
🧮 Risk scores recalculate continuously from more than 30 internal and external factors, from the vendor's own security posture to the AI agents acting through the app.
🛠️ Control gaps are ranked by how much they're driving risk, so your team knows exactly what to fix next.
🔄 Risk scores update automatically as usage, access, vendor conditions, and your own compensating controls change, no manual reassessment required.

See how it works below and read the full breakdown in our blog 👇 https://thn.news/ai-risk-strategy

#infosec #saas #tprm #grc #sspm

Phishing has lost the top spot in financial services breaches. Vulnerability exploitation is now the leading initial access vector.

More than half of financial services vendors carry at least one high-severity CVE.

Why the backlog math changed: https://thehackernews.com/2026/10/how-financial-services-companies-can.html

‼️ A WordPress backdoor can rebuild itself after cleanup.

SC keeps redundant copies across files, the database, and, where supported, System V shared memory. Any surviving copy can restore the malware, while Ethereum is used for command-and-control.

Inside the reinfection loop: https://thehackernews.com/2026/10/wordpress-backdoor-rebuilds-itself.html

Stop reacting to supply chain attacks and start preventing them.

When the next attack hits npm or PyPI, engineers can keep building rather than pulling apart dependency trees. You can eliminate those “are we impacted?” fire drills.

Whether it’s a malicious backdoored binary, install-time script, or typosquatted package, Chainguard Libraries are safe from the malware compromises that have made headlines.

Build safely with AI and prevent supply chain attacks → https://thn.news/open-source-chainguard

⚠️ 543,699 live credentials. AI-chained zero-days to root. Model inspection that runs code.

This week’s #ThreatsDay also covers blockchain-hidden malware, EDR evasion, cache poisoning, ATM jackpotting, crypto fraud, and more.

16 security stories. One fast read.

Read: https://thehackernews.com/2026/10/threatsday-ai-powered-zero-day-chain.html

🛑 Police arrested a 16-year-old suspected of running KillSec.

Authorities took over the #ransomware group’s leak site and shut down five servers. The probe covers about 1,000 suspected attacks worldwide, with about 500 identified as successful so far.

Read more: https://thehackernews.com/2026/10/police-arrest-16-year-old-suspected-of.html

‼️ WARNING: Attackers are exploiting a critical FortiMail flaw that allows unauthenticated arbitrary file writes.

CISA added "CVE-2026-104286" to KEV. Fortinet published IOCs and workarounds, with fixes still pending for some versions.

Learn more: https://thehackernews.com/2026/10/critical-fortimail-zero-day-flaw.html

🔥 Android 17 tightens Advanced Protection around AccessibilityService, a capability abused by banking trojans and spyware.

✓ AccessibilityService limited to verified Accessibility Tools
✓ Intrusion Logging
✓ USB Protection
✓ Disable WebGPU
✓ Failed Authentication Lock
✓ View Supporting Apps

The accessibility restriction applies when Advanced Protection is enabled.

What changed: https://thehackernews.com/2026/10/android-17-advanced-protection-locks.html

🚨 OpenAI cut ties with 3 safety researchers after finding they mishandled sensitive company information.

The Journal says it was shared with a third-party AI-safety group. Bloomberg reports it concerned OpenAI’s infrastructure architecture.

Details: https://thehackernews.com/2026/10/openai-parts-ways-with-three-safety.html

A CISO can have all the security data and still miss the board’s real questions.

The problem: identity, cloud, SaaS, endpoint, and vulnerability tools see separate findings, not the attack paths connecting them to critical assets.

How to rebuild the board report: https://thehackernews.com/2026/10/why-cisos-struggle-to-answer-boards.html

🛑 A Dell CSM flaw can give unauthenticated attackers admin control over storage infrastructure.

The six bugs include two CVSS 10.0 issues. Another can let a low-privilege attacker gain root on Kubernetes cluster nodes. Dell says there are no workarounds beyond updating.

Details: https://thehackernews.com/2026/10/dell-csm-flaws-enable-unauthenticated.html