A one-time password or OTP is a password that is suitable for only a single login session or transaction, on a system or different digital devices. OTPs ignore a number of inadequacies that are linked with conventional password-based verification; a number of accomplishments also integrate two-factor authentications by making sure that the one-time password needs access to something an individual has as well as something an individual knows.
The most significant benefit that is dealt by OTPs is that, in distinction to stationary passwords, they are not susceptible to rerun attacks. This means that a prospective interloper who administers to document an OTP that was already employed to log into a service or to carry out a transaction will not be capable of abusing it, as it will no more be suitable. A second major benefit is that a user, who employs the similar password for manifold systems, is not made susceptible on all of them, if the password for one of these is obtained by an assaulter. A number of OTP systems also target to make sure that a session cannot simply be interrupted without knowledge of impulsive data created all through the preceding session, therefore decreasing the attack surface additionally.
On the other hand, SMS integrations such as OpenCart SMS integration, WordPress SMS integration, etc., helps businesses in integrating OTP in their systems.
On the shortcoming, OTPs are hard for human beings to remember. Thus, they need extra technology to work.