The Magical ATM Card and SMS Message in Thailand

It was not too long ago that I penned Keyloggers: Why Banks Need Two-Factor Authentication. In that post, I briefly mentioned how a number of banks in Thailand use inexpensive SMS-based two-factor authentication (2FA) with one-time password (OTP) to authenticate transactions.
One of my favorite banks in Thailand is K-Bank. With K-Bank I can simply walk [...]

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