What is the OTP code on SafeTrade?

Excuse me, could you please clarify what the OTP code stands for on SafeTrade? I'm a bit unfamiliar with the terminology and would appreciate some guidance. Is it a specific type of security measure that users need to enter when performing transactions on the platform? If so, how does it work and what purpose does it serve in ensuring the safety of users' funds and personal information? I'm keen to learn more about this feature and how it contributes to the overall security of SafeTrade.