Distinguimos el código CVV del factor de autenticación.

Distinguimos is the 1st person plural form of distinguir in the present indicative.

So it means we distinguish.

Like many Spanish verb forms, it can also sometimes match another tense form in isolation, but in a normal sentence like this, the natural reading is present: we distinguish.

It is often used in:

• a general statement: we distinguish
• a technical or formal explanation: we make a distinction between
• a company/institution voice: we distinguish

Spanish often omits subject pronouns when they are not needed.

The ending -imos already tells you the subject is we.

So:

• Distinguimos el código CVV... = We distinguish the CVV code...
• Nosotros distinguimos el código CVV... is also possible, but it adds emphasis or contrast.

In most neutral contexts, Spanish prefers the version without nosotros.

Del is the contraction of de + el.

So:

• del = from the / of the, depending on context

With distinguir, Spanish normally uses the pattern:

distinguir X de Y = to distinguish X from Y

So in this sentence:

• Distinguimos el código CVV del factor de autenticación
• literally: We distinguish the CVV code from the authentication factor

That is why you see de, and because factor is masculine singular and takes el, de + el becomes del.

Because distinguir commonly takes de when you say what one thing is distinguished from.

The structure is:

• distinguir algo de algo
• separar algo de algo
• diferenciar algo de algo

Examples:

• Distingo una cosa de otra. = I distinguish one thing from another.
• Distinguimos el original de la copia. = We distinguish the original from the copy.

So the de here is just the normal preposition required by the verb pattern.

In Spanish, de + noun is very often used to classify or describe another noun.

So:

• factor de autenticación = authentication factor
• código de seguridad = security code
• tarjeta de crédito = credit card

In these cases, Spanish usually does not use the article.

Using de la autenticación would sound more like of the authentication, referring to a specific authentication process already known in the context. Here, the sentence is talking about a type/category, so de autenticación is the natural choice.

Spanish usually uses the definite article more often than English does.

Here, el goes with código, which is a masculine singular noun:

• el código

Then CVV specifies what kind of code it is:

• el código CVV

This is very normal Spanish noun structure. You could also sometimes see just el CVV, depending on context, but el código CVV is fuller and more explicit.

Not exactly, but in the sentence it behaves like part of a noun phrase.

The main noun is código, and CVV identifies it:

• el código CVV

Because código is masculine singular, the article is el.

In real usage, people may also say simply:

• el CVV

In that case, the acronym itself is treated as a masculine noun, usually because the implied word is código.

Yes, in many contexts diferenciar and distinguir are close in meaning.

• Distinguimos el código CVV del factor de autenticación.
• Diferenciamos el código CVV del factor de autenticación.

Both can work as we distinguish / differentiate the CVV code from the authentication factor.

That said, distinguir often sounds a bit more like telling one thing apart from another, while diferenciar can sound slightly more technical, like making or establishing a distinction. In formal or technical writing, either may be possible depending on style.

Spanish often uses a structure with de + noun where English might prefer an adjective or a noun used attributively.

So English:

• authentication factor

Spanish:

• factor de autenticación

This is one of the most common patterns in Spanish. A few similar examples are:

• sistema de pago = payment system
• proceso de validación = validation process
• método de acceso = access method

So even though English packs the idea into a noun modifier, Spanish often expresses it with de.

The basic word order is very standard:

Distinguimos + direct object + de-complement

So:

• Distinguimos = verb
• el código CVV = what is being distinguished
• del factor de autenticación = what it is distinguished from

This order is the clearest and most natural one.

You could sometimes rearrange parts for emphasis, but the given version is the most neutral:

• Distinguimos el código CVV del factor de autenticación.

Here it means tell apart / distinguish rather than notice.

Distinguir can have different meanings depending on context, such as:

• to distinguish / tell apart
• to recognize
• to make out visually or mentally

But in this sentence, because it uses de and compares two items, the meaning is clearly:

• to distinguish X from Y
• to tell X apart from Y

So the sentence is about making a distinction between the two things, not just noticing one of them.