Back up, wipe, reinstall, migrate in only docs, change all passwords on mail and Wi-Fi and all connected devices.
Don’t discuss trading or financials outside strictly necessary conversations, and don’t expect add-on security software or hardware products to actually do what it claims, and do expect at least some of those products to potentially open up new avenues for exploitation.
Mar 13, 2020 How to know if your WhatsApp has been hacked and how to fix it. It means a third party now has unlimited access to your personal chats, information, media and in some instances can also masquerade as you by deleting your chats, replying to your chats, committing crimes and that’s just the tip of the iceberg of how harmful being hacked can be to one.
Don’t run a guest network. Or if you do need a guest network, isolate it. WPA2 with a long pre-and complex shared key,
Use a password manager.
Safari on recent releases can show shared passwords, with a warning triangle in its password store. (Safari uses Keychain for storage, but the caution marker is something that only Safari shows and nor Keychain.) Remove most or all duplicates, when you’re changing passwords everywhere.
Backups, wipe, reinstall from known-good, change all credentials, enable multi-factor authentication where that’s available.
Backups are a key part of breach recovery.
Notify your financial institutions. Also notify your local police.
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