Can NFC business cards be cloned?
Basic NFC tags can be cloned — someone with an NFC writer app could copy the URL from your chip onto another chip, effectively creating a copy of your card. For business cards, this is a low-risk concern because the chip only stores a public URL that points to your profile.
What cloning actually means for a business card
Cloning an NFC business card means copying the URL from your chip to another chip. The clone would open the same profile when tapped. This is equivalent to writing down or sharing your profile URL — it doesn't compromise your account, your phone, or your personal information. Your profile remains under your control; the cloned card just points to the same place.
Who might clone a card and why
There's almost no practical motivation to clone a regular business card. Unlike payment cards where cloning enables fraud, cloning a business card just gives someone another copy of a public profile URL. The only scenario where it matters is if someone maliciously distributed copies of your card with the intent to confuse — which would be self-defeating since it directs people to your actual profile.
Write-locked chips prevent cloning attempts on the chip itself
Even if someone successfully reads your chip and writes that URL to a new chip, they haven't gained any unauthorized access — they've just recreated a business card that points to your public profile. For payment cards, cloning is a serious crime enabling fraud. For business cards, it's a theoretical exercise with no clear benefit for a bad actor.
Can I prevent my NFC card from being cloned?
You can't prevent someone from reading the chip's URL (it's intended to be readable). Write-locking prevents overwriting your chip, but doesn't prevent someone from copying the URL to a new chip.
Is a cloned NFC business card dangerous?
Not in any meaningful way. It points to the same public profile as the original. You control the profile content regardless of how many chips point to it.
Do payment-grade NFC chips prevent cloning?
Yes — payment chips like those in contactless bank cards use cryptographic authentication that prevents cloning. Basic business card chips (NTAG213/216) don't have this protection, but don't need it.