Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
WhatsApp's Hidden Chatbot Instructions: The 'Don't Recommend Regulators' Directive and What It Teaches Defenders About AI Governance
When the Instructions Users Can't See Matter More Than the Ones They Can In October 2026, reporting revealed that WhatsApp's help pages cont...
CVE-2026-86950: Apple CoreGraphics Zero-Day Exploited via Malicious PDF Fonts — Detection and Remediation Guide
Introduction Security researchers have published the first public proof-of-concept for CVE-2026-86950, a memory corruption vulnerability in ...
WhatsApp Multiple Passkeys and Stronger Two-Step Verification: A Defender's Configuration and Hardening Guide
WhatsApp Raises the Bar on Account Security — What Defenders Need to Do Now WhatsApp has begun rolling out a set of account security enhance...
WhatsApp Scam Alerts and Signal Key Verification: What Meta's and Signal's New Anti-Fraud Features Mean for Enterprise Defenders
Introduction Two of the world's most widely deployed encrypted messaging platforms made notable security moves this week. WhatsApp unveiled ...
WhatsApp Usernames: Mitigating OSINT Exposure and Social Engineering Risks
WhatsApp Usernames: Mitigating OSINT Exposure and Social Engineering Risks Introduction WhatsApp has announced the global rollout of a criti...
WhatsApp Usernames: Operational Security Upgrade Against OSINT and Targeted Attacks
WhatsApp Usernames: Operational Security Upgrade Against OSINT and Targeted Attacks Introduction On Monday, WhatsApp officially initiated th...
WhatsApp Phishing Campaign: VBScript-based Remote Access Attack — Detection and Defense Guide
WhatsApp Phishing Campaign: VBScript-based Remote Access Attack — Detection and Defense Guide Introduction Security Arsenal is tracking an a...
NSO Group WhatsApp Social Engineering Attack — Detection and Defense Guide
NSO Group WhatsApp Social Engineering Attack — Detection and Defense Guide Introduction Meta's security team has confirmed they detected and...
Zero-Click WhatsApp Account Takeover on iOS 16 — Detection, Analysis, and Hardening Guide
Zero-Click WhatsApp Account Takeover on iOS 16 — Detection, Analysis, and Hardening Guide Introduction A sophisticated zero-click attack tar...