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Meta and WhatsApp Cyberattacks: A Timeline of the Biggest Hacks (2019–2026)

Meta and WhatsApp have faced multiple high-profile incidents. The latest — the 2026 attack on Australian politicians — fits a long pattern.

2019 — Pegasus zero-click exploit

NSO Group’s spyware infected devices through a missed WhatsApp call.

2021 — 500M Facebook records leaked

Phone numbers linked to WhatsApp accounts appeared in dark-web dumps.

2022–2023 — Global SMS-cloning wave

Mass WhatsApp phishing targeting families and businesses.

2024 — Cloud backup concerns

Security researchers raised concerns about unencrypted chat backups.

2026 — Australian Parliament attack

Suspected foreign-state actor compromises an MP and three staffers via phishing.

Protect yourself with the WhatsApp 2026 security guide.

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