MENGADOPSI KODE OTP UNTUK MEMVERIFIKASI AKUN APLIKASI WHATSAPP DAN EMAIL

Usernames and passwords as authentication requirements for a system that are used repeatedly can make account security on that system vulnerable to data theft. Digital application access security is increasingly important, especially with the increase in cyber-attacks against login systems that use statistical passwords. One-Time Password (OTP) is one of the popular security solutions to enhance the login verification layer. This research aims to implement an OTP system on the WhatsApp and email applications as an authentication method. The method used is through experimental web-based application development by sending WhatsApp OTP and email and users are required to verify their identity using the code. Testing was carried out on 10 users by dividing them into two groups who received authentication via WhatsApp and email. The research results show that implementing OTP has succeeded in reducing the risk of unauthorized access by up to 80%. Thus, it is hoped that the use of OTP will effectively increase the security of the login process without involving the user. Thus, it is hoped that this research can contribute to better passcode security.