tru.ID vs SMS OTP

There are a lot of ways to authenticate users, and it can be confusing to work out which one is right for your needs. We’ve made it simple – see how tru.ID’s products compare to traditional verification via SMS OTP (one-time password), so you can make an informed decision about the security solution that’s right for you.

SMS OTP

tru.ID

Security factor

SMS OTPs
OTPs via SMS are a
possession factor
but they are easily compromised and prove only digital possession.
tru.ID
tru.ID is a much stronger
possession factor
that proves possession of a SIM card which has the expected number.

Accompanying identity or credential

SMS OTPs
Mobile phone number
tru.ID
Mobile phone number

Risk of compromise

SMS OTPs
Medium
tru.ID
Low

User effort required

SMS OTPs
High
tru.ID
Minimal

Data Collected

SMS OTPs
Mobile phone number
tru.ID
None

Requires managing a user database?

SMS OTPs
Yes
tru.ID
No

Susceptible to Man-in-the-middle attacks?

SMS OTPs
Yes
tru.ID
No

Susceptible to SIM Swaps?

SMS OTPs
Yes
tru.ID
No
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