Do you use a separate mobile number only for finance?

[muk9998]

Do you use a separate mobile number only for finance?

Lately I’ve been thinking about cybersecurity in banking and wanted to ask if anyone here has tried this:

👉 Keeping one primary number for daily use (calls, social apps, shopping, etc.)
👉 And a second number used only for finance (bank accounts, UPI, credit cards, etc.), never shared anywhere else.

The idea is to reduce the risk in case our regular number gets leaked in data breaches, phishing, or SIM-swap scams.

Recently, I checked on a paid data-leak site and found my primary number in 30+ places, along with email and other details 😓. That made me wonder if it’s better to keep a finance-only number strictly private.

A few doubts I have:

Has anyone here actually tried this setup? How do you manage it—dual SIM or separate phone?

After changing mobile number for finance, how long does it take for CIBIL and other bureaus to update to the new number?

Any hidden issues (like banks not accepting a fresh number, or OTP delivery problems)?


Would love to hear your experiences. Is it really worth the effort, or just extra hassle?


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[muk9998]

I should also add – I’ve been using my primary number for everything since the beginning. I’ve done so many deals, registered on countless portals, and now my inbox is literally flooded with junk mail.

This number is actually very old – my brother gave it to me when I was around 17 years old – and since then I’ve been using it everywhere without thinking about data privacy. No wonder it showed up on 30+ leaked sites when I checked 😅.

That’s why I’m seriously considering shifting all financial activity to a fresh number and keeping this old one just for daily use.


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