The exact number of OTPs generated daily on Earth is unknown, but it is likely in the billions. OTPs are used for a variety of purposes, including:

• Banking and financial transactions
• Online shopping
• Email and social media logins
• Two-factor authentication (2FA)
• Access control to physical and digital resources

The number of OTPs generated each day is likely to continue to grow as more and more businesses and individuals adopt OTPs as a security measure.

Here are some factors that could affect the number of OTPs generated daily:

• The number of people using OTPs
• The number of businesses and organizations that require OTPs
• The popularity of OTP-enabled services
• The level of security awareness among users

It is important to note that not all OTPs are created equal. Some OTPs are more secure than others. For example, OTPs that are generated using time-based algorithms are generally more secure than OTPs that are generated using event-based algorithms.

Ultimately, the number of OTPs generated daily is a function of the demand for OTPs and the security requirements of the applications and services that use them.