Not much pen testing you can do if they decide to cut you off. E.g on Linkedin it only works with NFC-enabled passports so it cryprographically signed by issuer

Not much pen testing you can do if they decide to cut you off. E.g on Linkedin it only works with NFC-enabled passports so it cryprographically signed by issuer country. Though considering how many americans dont have passports its will be like shooting themself in a foot.