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Security
Threats and good security practices around using WhatsApp (scams, malware, fake accounts).
Covers alerts on active campaigns (e.g. fake attachments carrying malware via WhatsApp Desktop/Web) and the role mechanisms like the Username Key play in preventing fake accounts from impersonating someone.
Last updated July 15, 2026
Frequently asked questions
How do I recognize a fake attachment scam?
Be wary of unexpected files from unknown contacts, especially ones prompting you to enable permissions or run an installer — legitimate contacts rarely send unsolicited executables.
Can the Username Key stop someone from impersonating me?
It doesn't stop them from picking a similar name, but it gives your contacts a way to confirm they're really reaching your account.