Using Google Authenticator? Read this.👇
"It may collect data from at least eight different data categories, including your phone's contact list, the photos and videos on your device, plus your phone number and physical address."
https://www.pcmag.com/reviews/google-authenticator
What are the good alternatives ?
IF you are REALLY concerned about data collection or leakage I STRONGLY suggest you to use KeepassXC. It supports TOTP by a really long time. I'd rather put in the effort to manually copy my password files to my own cloud drive than trust password managers that use data centers run by those big tech companies we all know.
Having the authenticator on an old phone fixes this, Doesn't even require a sim card.
Pull an old phone out of a box. Put 2FA on that phone, problem solved. Doesn't even require a sim card.
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Is there a NOSTR BASED alternative?