Zero-Click WhatsApp Account Takeover Hits iPhone Users Running iOS 16. No Linked Devices, No Warning
A zero-click attack targeting iPhones on iOS 16 hijacked WhatsApp accounts without linked devices, warnings, or user interaction. There is a particular kind of security incident that is harder to explain than most: your WhatsApp account is sending messages you did not write, asking your contacts for money transfers, and when you check the “Linked […]

There is a particular kind of security incident that is harder to explain than most: your WhatsApp account is sending messages you did not write, asking your contacts for money transfers, and when you check the “Linked Devices” section in the app, it shows nothing. No unauthorized sessions, no suspicious logins, no QR codes scanned by mistake. Just your phone, your account, and someone else apparently using it at the same time.
That is exactly what happened to multiple iPhone users in Italy over the past few weeks, and the forensic investigation that followed has uncovered what appears to be an active zero-click exploitation campaign targeting a specific combination of iOS version and WhatsApp client.
Related breach coverage
- Attackers are bypassing MFA on SonicWall VPNs because something was wrong with previous fix2026-05-21
Attackers bypassed MFA on patched SonicWall Gen6 VPNs because admins missed extra manual steps required to fully fix the flaw. There is a particular kind of security failure that is harder to catch than an unpatched system: a patched system where the patch did not actually work because nobody followed all the steps. That is […]
- Instagram Account Hijacks Expose the Security Risks of AI-Powered Support2026-06-02
Attackers exploited Meta’s AI support chatbot to reset Instagram passwords and hijack accounts without accessing victims’ email inboxes. Attackers abused Meta’s AI-powered support chatbot to reset Instagram passwords and hijack accounts without accessing victims’ email inboxes. The issue affected several users, including high-profile accounts, before Instagram fixed the flaw. Security researcher Jane Wong and other […]
- Signal Phishing Campaign Targets Journalists and Activists to Steal Backup Recovery Keys2026-05-30
Attackers are texting Signal users posing as Support, asking for backup recovery keys. Once obtained, they can decrypt the entire message history, not just future chats. A phishing campaign is currently targeting Signal users with text messages that impersonate Signal Support and ask them to hand over their backup recovery key. The message looks urgent, […]
- Botnet of 17 Million Devices Dismantled in the Netherlands2026-05-30
Dutch authorities seized 200 servers running a 17-million-device botnet linked to proxy service Asocks. Dutch authorities have taken offline a massive botnet of at least 17 million devices and seized more than 200 servers at a local provider that supported the operation. Infected devices included computers, tablets, and smartphones. The action was carried out following […]
